Android MediaDecoder: Use frame pool to avoid allocations for non-surface decoding

Android MediaDecoder: Use frame pool to avoid allocations for non-surface decoding

BUG=webrtc:4993
TEST=To test non-surface path, set 'use_surface_ = false' in androidmediadecoder_jni.cc.
R=perkj@webrtc.org

Committed: https://crrev.com/bbda54e6fa3108451fbe83a6b55c30a0f443b532
Cr-Commit-Position: refs/heads/master@{#10116}

[magjed_webrtc, 2015-09-30 06:26:02]

magjed@webrtc.org changed reviewers:
+ perkj@webrtc.org

[magjed_webrtc, 2015-09-30 06:26:19]

perkj - Please take a look.

[perkj_webrtc, 2015-09-30 09:57:43]

code looks good. 
But please write how you test this in the description since it must be manually
tested. Note that testing this is not the same as disabling hw support in
ApprtcDemo.

[perkj_webrtc, 2015-09-30 12:16:30]

On 2015/09/30 09:57:43, perkj1 wrote:
> code looks good. 
> But please write how you test this in the description since it must be
manually
> tested. Note that testing this is not the same as disabling hw support in
> ApprtcDemo.

lgtm

[magjed_webrtc, 2015-09-30 14:07:02]

Committed patchset #1 (id:1) manually as
bbda54e6fa3108451fbe83a6b55c30a0f443b532 (presubmit successful).

[commit-bot: I haz the power, 2015-09-30 14:07:05]

Patchset 1 (id:??) landed as
https://crrev.com/bbda54e6fa3108451fbe83a6b55c30a0f443b532
Cr-Commit-Position: refs/heads/master@{#10116}