DEPS: Sync Git subtree mirrors instead of symlinking into chromium/src

DEPS: Sync Git subtree mirrors instead of symlinking into chromium/src

This changes the way we pull in dependencies WebRTC shares with
Chromium. The base, build, tools and third_party directories from
Chromium are now synced as Git subtree mirrors in the DEPS file.

All symlinks to directories that were previously created by the
setup_links.py are replaced with proper DEPS entries.

One downside with this solution is that we get a lot of directories
in tools/ and third_party/ that we currently don't use. Going forward
it might be possible to improve this but as long as the BUILD.gn files
are stored in the Chromium repo rather at each dependency's repo,
this will be very cumbersome.

The DEPS file will be kept auto-rolled by the script in
https://chromium.googlesource.com/external/webrtc/+/master/tools-webrtc/autoroller/roll_deps.py
which is periodically executed by a bot.

This change brings back the Google Play Services download for Android,
which displays a license confirmation dialog to the user at the first sync.
By running it as a proper hook instead of inside sync_chromium.py, the
problems with that the interactive prompt gets hidden/stuck should be
fixed (now the behavior is identical to Chromium).

Some measurements on the size savings for a clean, newly created checkout:
Linux: 15GB -> 6.4GB (-8.6GB)
Linux (with Android): 25 GB -> 16 GB (-9GB). 8.4GB of this is Android SDK+NDK.
Mac (with iOS): 14 GB -> 5.6GB (-8.4GB)

Note that for all of the above, 1GB is occupied by the resources/ dir.

BUG=webrtc:5006, webrtc:5578
NOTRY=True
R=agable@chromium.org, henrika@webrtc.org, iannucci@chromium.org

Review-Url: https://codereview.webrtc.org/1414343008 .
Cr-Commit-Position: refs/heads/master@{#15754}
Committed: https://chromium.googlesource.com/external/webrtc/+/177567c518b121731e507e9b9c4049c4dc96e4c8

[kjellander_webrtc, 2015-11-09 04:42:44]

Description was changed from

==========
Sync mirrors instead of chromium/src

Notice that there are a couple of missing Git mirrors still:
src/tools/android
src/tools/generate_library_loader
src/tools/grit
src/tools/memory
src/tools/protoc_wrapper
src/tools/python
src/tools/valgrind
src/tools/vim
src/tools/win
src/tools/xdisplaycheck

BUG=webrtc:5006
==========

to

==========
Sync mirrors instead of chromium/src

Remaining work: 
1. Pinning each DEPS entry to a specific version:
2. Implement a way to automatically roll each dependency (preferably
on a bot).

BUG=webrtc:5006
==========

[kjellander_webrtc, 2016-06-22 12:02:12]

Description was changed from

==========
Sync mirrors instead of chromium/src

Remaining work: 
1. Pinning each DEPS entry to a specific version:
2. Implement a way to automatically roll each dependency (preferably
on a bot).

BUG=webrtc:5006
==========

to

==========
Sync mirrors instead of chromium/src

Remaining work: 
1. Pinning each DEPS entry to a specific version:
2. Implement a way to automatically roll each dependency (preferably
on a bot).
3. Seamless transition forward and backwards of the commit of this CL.

BUG=webrtc:5006
==========

[kjellander_webrtc, 2016-11-07 19:54:47]

Description was changed from

==========
Sync mirrors instead of chromium/src

Remaining work: 
1. Pinning each DEPS entry to a specific version:
2. Implement a way to automatically roll each dependency (preferably
on a bot).
3. Seamless transition forward and backwards of the commit of this CL.

BUG=webrtc:5006
==========

to

==========
DEPS: Sync Git subtree mirrors instead of symlinking into chromium/src

TODO:
1. Synchronize with current setup_links.py
2. File go/chromeinfraticket (Infra-Git comonent) bugs for any
   missing subtree repos.
3. Move the current WebRTC third_party dependencies (gflags, gtest-parallel and
winsdk_samples)
   into their own repos and deps them in so we can remove our checked-in
third_party dir.
4. Update the runhooks section to current Chromium's DEPS.
5. Pin each DEPS entry to the HEAD revision, this is preferably done by running
a script that
auto-updates each entry, like the recipe for V8: 
https://cs.chromium.org/chromium/build/scripts/slave/recipes/v8/auto_roll_v8_...
6. Test transition forward and backwards of the commit of this CL, to ensure
a revert doesn't break everyone's checkout.

BUG=webrtc:5006
==========

[kjellander_webrtc, 2016-11-07 19:55:16]

Patchset #1 (id:1) has been deleted

[kjellander_webrtc, 2016-11-07 19:55:25]

Patchset #1 (id:20001) has been deleted

[kjellander_webrtc, 2016-11-07 19:55:32]

Patchset #1 (id:40001) has been deleted

[kjellander_webrtc, 2016-11-07 19:55:39]

Patchset #1 (id:60001) has been deleted

[kjellander_webrtc, 2016-12-15 12:59:46]

Description was changed from

==========
DEPS: Sync Git subtree mirrors instead of symlinking into chromium/src

TODO:
1. Synchronize with current setup_links.py
2. File go/chromeinfraticket (Infra-Git comonent) bugs for any
   missing subtree repos.
3. Move the current WebRTC third_party dependencies (gflags, gtest-parallel and
winsdk_samples)
   into their own repos and deps them in so we can remove our checked-in
third_party dir.
4. Update the runhooks section to current Chromium's DEPS.
5. Pin each DEPS entry to the HEAD revision, this is preferably done by running
a script that
auto-updates each entry, like the recipe for V8: 
https://cs.chromium.org/chromium/build/scripts/slave/recipes/v8/auto_roll_v8_...
6. Test transition forward and backwards of the commit of this CL, to ensure
a revert doesn't break everyone's checkout.

BUG=webrtc:5006
==========

to

==========
DEPS: Sync Git subtree mirrors instead of symlinking into chromium/src

The following deps that used to be in WebRTC third_party/ is now moved to
separate repos and are being pulled in via DEPS instead:
* gflags
* gtest-parallel
* winsdk_samples

TODO:
Test transition forward and backwards of the commit of this CL, to ensure
a revert doesn't break everyone's checkout.

BUG=webrtc:5006
==========

[kjellander_webrtc, 2016-12-20 13:36:55]

The CQ bit was checked by kjellander@webrtc.org to run a CQ dry run

[commit-bot: I haz the power, 2016-12-20 13:36:59]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[kjellander_webrtc, 2016-12-20 13:44:43]

Description was changed from

==========
DEPS: Sync Git subtree mirrors instead of symlinking into chromium/src

The following deps that used to be in WebRTC third_party/ is now moved to
separate repos and are being pulled in via DEPS instead:
* gflags
* gtest-parallel
* winsdk_samples

TODO:
Test transition forward and backwards of the commit of this CL, to ensure
a revert doesn't break everyone's checkout.

BUG=webrtc:5006
==========

to

==========
DEPS: Sync Git subtree mirrors instead of symlinking into chromium/src

This changes the way we pull in dependencies we share with Chromium.
The base, build, tools and third_party directories from Chromium are now
synced as Git subtree mirrors in the DEPS file. 

BUG=webrtc:5006
==========

[commit-bot: I haz the power, 2016-12-20 13:45:09]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-12-20 13:45:09]

Dry run: Try jobs failed on following builders:
  linux_libfuzzer_rel on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/linux_libfuzzer_rel/bui...)

[kjellander_webrtc, 2016-12-20 14:33:53]

Description was changed from

==========
DEPS: Sync Git subtree mirrors instead of symlinking into chromium/src

This changes the way we pull in dependencies we share with Chromium.
The base, build, tools and third_party directories from Chromium are now
synced as Git subtree mirrors in the DEPS file. 

BUG=webrtc:5006
==========

to

==========
DEPS: Sync Git subtree mirrors instead of symlinking into chromium/src

This changes the way we pull in dependencies WebRTC shares with
Chromium. The base, build, tools and third_party directories from
Chromium are now synced as Git subtree mirrors in the DEPS file. 

All symlinks to directories that were previously created by the
setup_links.py are replaced with proper DEPS entries.

The DEPS file will be kept auto-rolled by the script in
https://chromium.googlesource.com/external/webrtc/+/master/tools-webrtc/autor...
which is periodically executed by a bot.

This change brings back the Google Play Services download for Android,
which displays a license confirmation dialog to the user at the first sync.
By running it as a proper hook instead of inside sync_chromium.py, the
problems with that the interactive prompt gets hidden/stuck should be
fixed (now the behavior is identical to Chromium).

BUG=webrtc:5006, webrtc:5578
==========

[kjellander_webrtc, 2016-12-20 14:34:19]

Patchset #17 (id:400001) has been deleted

[kjellander_webrtc, 2016-12-20 19:29:21]

Description was changed from

==========
DEPS: Sync Git subtree mirrors instead of symlinking into chromium/src

This changes the way we pull in dependencies WebRTC shares with
Chromium. The base, build, tools and third_party directories from
Chromium are now synced as Git subtree mirrors in the DEPS file. 

All symlinks to directories that were previously created by the
setup_links.py are replaced with proper DEPS entries.

The DEPS file will be kept auto-rolled by the script in
https://chromium.googlesource.com/external/webrtc/+/master/tools-webrtc/autor...
which is periodically executed by a bot.

This change brings back the Google Play Services download for Android,
which displays a license confirmation dialog to the user at the first sync.
By running it as a proper hook instead of inside sync_chromium.py, the
problems with that the interactive prompt gets hidden/stuck should be
fixed (now the behavior is identical to Chromium).

BUG=webrtc:5006, webrtc:5578
==========

to

==========
DEPS: Sync Git subtree mirrors instead of symlinking into chromium/src

This changes the way we pull in dependencies WebRTC shares with
Chromium. The base, build, tools and third_party directories from
Chromium are now synced as Git subtree mirrors in the DEPS file. 

All symlinks to directories that were previously created by the
setup_links.py are replaced with proper DEPS entries.

The DEPS file will be kept auto-rolled by the script in
https://chromium.googlesource.com/external/webrtc/+/master/tools-webrtc/autor...
which is periodically executed by a bot.

This change brings back the Google Play Services download for Android,
which displays a license confirmation dialog to the user at the first sync.
By running it as a proper hook instead of inside sync_chromium.py, the
problems with that the interactive prompt gets hidden/stuck should be
fixed (now the behavior is identical to Chromium).

Some measurements on the size savings for a clean, newly created checkout:
Linux: 15GB -> 6.4GB (-8.6GB)
Linux (with Android): 25 GB -> 16 GB (-9GB). 8.4GB of this is Android SDK+NDK.
Mac (with iOS): 14 GB -> 5.6GB (-8.4GB)

Note that for all of the above, 1GB is occupied by the resources/ dir.

BUG=webrtc:5006, webrtc:5578
==========

[kjellander_webrtc, 2016-12-20 19:34:48]

Description was changed from

==========
DEPS: Sync Git subtree mirrors instead of symlinking into chromium/src

This changes the way we pull in dependencies WebRTC shares with
Chromium. The base, build, tools and third_party directories from
Chromium are now synced as Git subtree mirrors in the DEPS file. 

All symlinks to directories that were previously created by the
setup_links.py are replaced with proper DEPS entries.

The DEPS file will be kept auto-rolled by the script in
https://chromium.googlesource.com/external/webrtc/+/master/tools-webrtc/autor...
which is periodically executed by a bot.

This change brings back the Google Play Services download for Android,
which displays a license confirmation dialog to the user at the first sync.
By running it as a proper hook instead of inside sync_chromium.py, the
problems with that the interactive prompt gets hidden/stuck should be
fixed (now the behavior is identical to Chromium).

Some measurements on the size savings for a clean, newly created checkout:
Linux: 15GB -> 6.4GB (-8.6GB)
Linux (with Android): 25 GB -> 16 GB (-9GB). 8.4GB of this is Android SDK+NDK.
Mac (with iOS): 14 GB -> 5.6GB (-8.4GB)

Note that for all of the above, 1GB is occupied by the resources/ dir.

BUG=webrtc:5006, webrtc:5578
==========

to

==========
DEPS: Sync Git subtree mirrors instead of symlinking into chromium/src

This changes the way we pull in dependencies WebRTC shares with
Chromium. The base, build, tools and third_party directories from
Chromium are now synced as Git subtree mirrors in the DEPS file. 

All symlinks to directories that were previously created by the
setup_links.py are replaced with proper DEPS entries.

One downside with this solution is that we get a lot of directories
in tools/ and third_party/ that we currently don't use. Going forward
it might be possible to improve this but as long as the BUILD.gn files
are stored in the Chromium repo rather at each dependency's repo,
this will be very cumbersome.

The DEPS file will be kept auto-rolled by the script in
https://chromium.googlesource.com/external/webrtc/+/master/tools-webrtc/autor...
which is periodically executed by a bot.

This change brings back the Google Play Services download for Android,
which displays a license confirmation dialog to the user at the first sync.
By running it as a proper hook instead of inside sync_chromium.py, the
problems with that the interactive prompt gets hidden/stuck should be
fixed (now the behavior is identical to Chromium).

Some measurements on the size savings for a clean, newly created checkout:
Linux: 15GB -> 6.4GB (-8.6GB)
Linux (with Android): 25 GB -> 16 GB (-9GB). 8.4GB of this is Android SDK+NDK.
Mac (with iOS): 14 GB -> 5.6GB (-8.4GB)

Note that for all of the above, 1GB is occupied by the resources/ dir.

BUG=webrtc:5006, webrtc:5578
==========

[kjellander_webrtc, 2016-12-20 20:51:57]

kjellander@webrtc.org changed reviewers:
+ iannucci@chromium.org

[kjellander_webrtc, 2016-12-20 20:51:58]

Robbie, all in our team that have any idea about this are OOO this week. Can you
have a quick look?

[kjellander_webrtc, 2016-12-20 20:54:06]

kjellander@webrtc.org changed reviewers:
+ agable@chromium.org

[kjellander_webrtc, 2016-12-20 20:54:07]

agable can you see if you can figure out any dangers with this? Robbie is OOO
(and everyone else that knows anything about this in my team).

[agable, 2016-12-20 21:03:13]

This LGTM % two comments:
* one in-line
* there are a ton of new entries in the DEPS file which aren't subdirectory
mirrors of src.git. My assumption is that these are chosen to have the same
hashes as are currently in src's DEPS file. How are they going to be kept in
sync with the entries in src/DEPS? I didn't see any new logic in the autoroller
to ensure that.

https://codereview.webrtc.org/1414343008/diff/440001/DEPS
File DEPS (right):

https://codereview.webrtc.org/1414343008/diff/440001/DEPS#newcode7
DEPS:7: # the commit queue can handle CLs rolling swarming_client
s/swarming_client/some other random string, or the name of the actual following
dep/

[kjellander_webrtc, 2016-12-21 07:39:21]

On 2016/12/20 21:03:13, agable wrote:
> This LGTM % two comments:
> * one in-line
> * there are a ton of new entries in the DEPS file which aren't subdirectory
> mirrors of src.git. My assumption is that these are chosen to have the same
> hashes as are currently in src's DEPS file. How are they going to be kept in
> sync with the entries in src/DEPS? I didn't see any new logic in the
autoroller
> to ensure that.

The autoroller script at
https://chromium.googlesource.com/external/webrtc/+/master/tools-webrtc/autor...
has been updated previously to handle rolling of individual deps entries:
https://codereview.webrtc.org/2570603003
It will roll the dependency to the same revision as the Chromium DEPS file of
the chromium_revision, if available. If not
it will roll to HEAD. Same goes for the Git subtree mirrors - they will always
be rolled to HEAD as well.

> 
> https://codereview.webrtc.org/1414343008/diff/440001/DEPS
> File DEPS (right):
> 
> https://codereview.webrtc.org/1414343008/diff/440001/DEPS#newcode7
> DEPS:7: # the commit queue can handle CLs rolling swarming_client
> s/swarming_client/some other random string, or the name of the actual
following
> dep/

[iannucci, 2016-12-21 09:20:06]

fwiw, this lgtm too.

I think without the autoroller script this would be infeasible to maintain,
however, which worries me somewhat (though I don't have any good ideas to
improve the situation).

It occurs to me that we COULD build support for this into gclient, but it would
be messy for a number of reasons.

[kjellander_webrtc, 2016-12-21 12:51:09]

Thanks for the reviews!
I don't think it's unreasonable to rely on a script for rolling the deps
forward. Nobody wants to do it manually anyway, and if they need to they can
simply use the script (it's similarly useful for automation as manual runs).

https://codereview.webrtc.org/1414343008/diff/440001/DEPS
File DEPS (right):

https://codereview.webrtc.org/1414343008/diff/440001/DEPS#newcode7
DEPS:7: # the commit queue can handle CLs rolling swarming_client
On 2016/12/20 21:03:13, agable wrote:
> s/swarming_client/some other random string, or the name of the actual
following
> dep/

Ah. I didn't notice. Updated now.

[kjellander_webrtc, 2016-12-21 13:17:48]

The CQ bit was checked by kjellander@webrtc.org to run a CQ dry run

[commit-bot: I haz the power, 2016-12-21 13:17:59]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[commit-bot: I haz the power, 2016-12-21 13:28:09]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-12-21 13:28:10]

Dry run: Try jobs failed on following builders:
  android_more_configs on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/android_more_configs/bu...)

[kjellander_webrtc, 2016-12-22 09:18:57]

Description was changed from

==========
DEPS: Sync Git subtree mirrors instead of symlinking into chromium/src

This changes the way we pull in dependencies WebRTC shares with
Chromium. The base, build, tools and third_party directories from
Chromium are now synced as Git subtree mirrors in the DEPS file. 

All symlinks to directories that were previously created by the
setup_links.py are replaced with proper DEPS entries.

One downside with this solution is that we get a lot of directories
in tools/ and third_party/ that we currently don't use. Going forward
it might be possible to improve this but as long as the BUILD.gn files
are stored in the Chromium repo rather at each dependency's repo,
this will be very cumbersome.

The DEPS file will be kept auto-rolled by the script in
https://chromium.googlesource.com/external/webrtc/+/master/tools-webrtc/autor...
which is periodically executed by a bot.

This change brings back the Google Play Services download for Android,
which displays a license confirmation dialog to the user at the first sync.
By running it as a proper hook instead of inside sync_chromium.py, the
problems with that the interactive prompt gets hidden/stuck should be
fixed (now the behavior is identical to Chromium).

Some measurements on the size savings for a clean, newly created checkout:
Linux: 15GB -> 6.4GB (-8.6GB)
Linux (with Android): 25 GB -> 16 GB (-9GB). 8.4GB of this is Android SDK+NDK.
Mac (with iOS): 14 GB -> 5.6GB (-8.4GB)

Note that for all of the above, 1GB is occupied by the resources/ dir.

BUG=webrtc:5006, webrtc:5578
==========

to

==========
DEPS: Sync Git subtree mirrors instead of symlinking into chromium/src

This changes the way we pull in dependencies WebRTC shares with
Chromium. The base, build, tools and third_party directories from
Chromium are now synced as Git subtree mirrors in the DEPS file. 

All symlinks to directories that were previously created by the
setup_links.py are replaced with proper DEPS entries.

One downside with this solution is that we get a lot of directories
in tools/ and third_party/ that we currently don't use. Going forward
it might be possible to improve this but as long as the BUILD.gn files
are stored in the Chromium repo rather at each dependency's repo,
this will be very cumbersome.

The DEPS file will be kept auto-rolled by the script in
https://chromium.googlesource.com/external/webrtc/+/master/tools-webrtc/autor...
which is periodically executed by a bot.

This change brings back the Google Play Services download for Android,
which displays a license confirmation dialog to the user at the first sync.
By running it as a proper hook instead of inside sync_chromium.py, the
problems with that the interactive prompt gets hidden/stuck should be
fixed (now the behavior is identical to Chromium).

Some measurements on the size savings for a clean, newly created checkout:
Linux: 15GB -> 6.4GB (-8.6GB)
Linux (with Android): 25 GB -> 16 GB (-9GB). 8.4GB of this is Android SDK+NDK.
Mac (with iOS): 14 GB -> 5.6GB (-8.4GB)

Note that for all of the above, 1GB is occupied by the resources/ dir.

BUG=webrtc:5006, webrtc:5578
NOTRY=True
==========

[kjellander_webrtc, 2016-12-22 09:19:09]

The CQ bit was checked by kjellander@webrtc.org

[kjellander_webrtc, 2016-12-22 09:19:10]

The patchset sent to the CQ was uploaded after l-g-t-m from agable@chromium.org,
iannucci@chromium.org
Link to the patchset: https://codereview.webrtc.org/1414343008/#ps520001 (title:
"Rebased")

[commit-bot: I haz the power, 2016-12-22 09:19:14]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[commit-bot: I haz the power, 2016-12-22 09:32:44]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-12-22 09:32:45]

Try jobs failed on following builders:
  presubmit on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/presubmit/builds/11694)

[kjellander_webrtc, 2016-12-22 09:33:21]

kjellander@webrtc.org changed reviewers:
+ henrika@webrtc.org

[kjellander_webrtc, 2016-12-22 09:33:42]

+henrika: rubberstamp for deleting chromium/

[henrika_webrtc, 2016-12-22 09:35:00]

LGTM

[kjellander_webrtc, 2016-12-22 09:40:03]

Description was changed from

==========
DEPS: Sync Git subtree mirrors instead of symlinking into chromium/src

This changes the way we pull in dependencies WebRTC shares with
Chromium. The base, build, tools and third_party directories from
Chromium are now synced as Git subtree mirrors in the DEPS file. 

All symlinks to directories that were previously created by the
setup_links.py are replaced with proper DEPS entries.

One downside with this solution is that we get a lot of directories
in tools/ and third_party/ that we currently don't use. Going forward
it might be possible to improve this but as long as the BUILD.gn files
are stored in the Chromium repo rather at each dependency's repo,
this will be very cumbersome.

The DEPS file will be kept auto-rolled by the script in
https://chromium.googlesource.com/external/webrtc/+/master/tools-webrtc/autor...
which is periodically executed by a bot.

This change brings back the Google Play Services download for Android,
which displays a license confirmation dialog to the user at the first sync.
By running it as a proper hook instead of inside sync_chromium.py, the
problems with that the interactive prompt gets hidden/stuck should be
fixed (now the behavior is identical to Chromium).

Some measurements on the size savings for a clean, newly created checkout:
Linux: 15GB -> 6.4GB (-8.6GB)
Linux (with Android): 25 GB -> 16 GB (-9GB). 8.4GB of this is Android SDK+NDK.
Mac (with iOS): 14 GB -> 5.6GB (-8.4GB)

Note that for all of the above, 1GB is occupied by the resources/ dir.

BUG=webrtc:5006, webrtc:5578
NOTRY=True
==========

to

==========
DEPS: Sync Git subtree mirrors instead of symlinking into chromium/src

This changes the way we pull in dependencies WebRTC shares with
Chromium. The base, build, tools and third_party directories from
Chromium are now synced as Git subtree mirrors in the DEPS file.

All symlinks to directories that were previously created by the
setup_links.py are replaced with proper DEPS entries.

One downside with this solution is that we get a lot of directories
in tools/ and third_party/ that we currently don't use. Going forward
it might be possible to improve this but as long as the BUILD.gn files
are stored in the Chromium repo rather at each dependency's repo,
this will be very cumbersome.

The DEPS file will be kept auto-rolled by the script in
https://chromium.googlesource.com/external/webrtc/+/master/tools-webrtc/autor...
which is periodically executed by a bot.

This change brings back the Google Play Services download for Android,
which displays a license confirmation dialog to the user at the first sync.
By running it as a proper hook instead of inside sync_chromium.py, the
problems with that the interactive prompt gets hidden/stuck should be
fixed (now the behavior is identical to Chromium).

Some measurements on the size savings for a clean, newly created checkout:
Linux: 15GB -> 6.4GB (-8.6GB)
Linux (with Android): 25 GB -> 16 GB (-9GB). 8.4GB of this is Android SDK+NDK.
Mac (with iOS): 14 GB -> 5.6GB (-8.4GB)

Note that for all of the above, 1GB is occupied by the resources/ dir.

BUG=webrtc:5006, webrtc:5578
NOTRY=True
R=agable@chromium.org, henrika@webrtc.org, iannucci@chromium.org

Review-Url: https://codereview.webrtc.org/1414343008 .
Cr-Commit-Position: refs/heads/master@{#15754}
Committed:
https://chromium.googlesource.com/external/webrtc/+/177567c518b121731e507e9b9...
==========

[kjellander_webrtc, 2016-12-22 09:40:04]

Committed patchset #22 (id:520001) manually as
177567c518b121731e507e9b9c4049c4dc96e4c8.