Fix compilation if HAVE_WEBRTC_VIDEO is not defined.

Fix compilation if HAVE_WEBRTC_VIDEO is not defined.

This CL fixes compiler / linker errors that occur if HAVE_WEBRTC_VIDEO is
not defined and introduces a new class NullWebRtcVideoEngine to use in
that case.

BUG=
TEST=remove define HAVE_WEBRTC_VIDEO from talk/build/common.gypi, run gclient runhooks and compile

[joachim, 2016-01-22 20:45:51]

jbauch@webrtc.org changed reviewers:
+ tommi@webrtc.org

[joachim, 2016-01-22 20:45:51]

Ptal

[tommi, 2016-01-24 13:51:19]

The CQ bit was checked by tommi@webrtc.org

[tommi, 2016-01-24 13:51:19]

lgtm

[commit-bot: I haz the power, 2016-01-24 13:51:29]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1621453005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1621453005/1

[commit-bot: I haz the power, 2016-01-24 13:52:53]

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

[commit-bot: I haz the power, 2016-01-24 13:52:54]

Try jobs failed on following builders:
  win_baremetal on tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/win_baremetal/builds/8588)

[tommi, 2016-01-24 14:01:59]

On 2016/01/24 13:52:54, commit-bot: I haz the power wrote:
> Try jobs failed on following builders:
>   win_baremetal on tryserver.webrtc (JOB_FAILED,
>
http://build.chromium.org/p/tryserver.webrtc/builders/win_baremetal/builds/8588)

Looks like we're missing nullwebrtcmediaengine.h

[joachim, 2016-01-24 14:06:19]

Sorry, the "nullwebrtcvideoengine.h" started as "nullwebrtcmediaengine.h" while
I developed this CL and I forgot updating the GYP when I renamed it.

Interestingly this doesn't cause an error on Linux (which I'm using for
development).

Anyway, updated the GYP.

[joachim, 2016-01-26 00:00:03]

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

[commit-bot: I haz the power, 2016-01-26 00:00:13]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1621453005/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1621453005/20001

[commit-bot: I haz the power, 2016-01-26 01:36:25]

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

[commit-bot: I haz the power, 2016-01-26 01:36:26]

Dry run: This issue passed the CQ dry run.

[joachim, 2016-01-26 08:42:36]

On 2016/01/26 01:36:26, commit-bot: I haz the power wrote:
> Dry run: This issue passed the CQ dry run.

Tommi, do you want to check the GYP changes or can I just land this through the
CQ?

[tommi, 2016-01-26 21:03:40]

The CQ bit was checked by tommi@webrtc.org

[tommi, 2016-01-26 21:03:40]

The patchset sent to the CQ was uploaded after l-g-t-m from tommi@webrtc.org
Link to the patchset: https://codereview.webrtc.org/1621453005/#ps20001 (title:
"Fixed wrong filename in gyp")

[commit-bot: I haz the power, 2016-01-26 21:03:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1621453005/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1621453005/20001

[commit-bot: I haz the power, 2016-01-26 21:08:03]

Description was changed from

==========
Fix compilation if HAVE_WEBRTC_VIDEO is not defined.

This CL fixes compiler / linker errors that occur if HAVE_WEBRTC_VIDEO is
not defined and introduces a new class NullWebRtcVideoEngine to use in
that case.

BUG=
TEST=remove define HAVE_WEBRTC_VIDEO from talk/build/common.gypi, run gclient
runhooks and compile
==========

to

==========
Fix compilation if HAVE_WEBRTC_VIDEO is not defined.

This CL fixes compiler / linker errors that occur if HAVE_WEBRTC_VIDEO is
not defined and introduces a new class NullWebRtcVideoEngine to use in
that case.

BUG=
TEST=remove define HAVE_WEBRTC_VIDEO from talk/build/common.gypi, run gclient
runhooks and compile

Committed: https://crrev.com/4cb3e3997b547cd28a92a4f323f14575019756fa
Cr-Commit-Position: refs/heads/master@{#11387}
==========

[commit-bot: I haz the power, 2016-01-26 21:08:04]

Patchset 2 (id:??) landed as
https://crrev.com/4cb3e3997b547cd28a92a4f323f14575019756fa
Cr-Commit-Position: refs/heads/master@{#11387}

[commit-bot: I haz the power, 2016-01-26 21:08:11]

Description was changed from

==========
Fix compilation if HAVE_WEBRTC_VIDEO is not defined.

This CL fixes compiler / linker errors that occur if HAVE_WEBRTC_VIDEO is
not defined and introduces a new class NullWebRtcVideoEngine to use in
that case.

BUG=
TEST=remove define HAVE_WEBRTC_VIDEO from talk/build/common.gypi, run gclient
runhooks and compile

Committed: https://crrev.com/4cb3e3997b547cd28a92a4f323f14575019756fa
Cr-Commit-Position: refs/heads/master@{#11387}
==========

to

==========
Fix compilation if HAVE_WEBRTC_VIDEO is not defined.

This CL fixes compiler / linker errors that occur if HAVE_WEBRTC_VIDEO is
not defined and introduces a new class NullWebRtcVideoEngine to use in
that case.

BUG=
TEST=remove define HAVE_WEBRTC_VIDEO from talk/build/common.gypi, run gclient
runhooks and compile
==========

[commit-bot: I haz the power, 2016-01-26 21:08:12]

Committed patchset #2 (id:20001)