Support renderbufferStorageMultisampleEXT in webgraphicscontext3d

This will allow us to use the extension from blink.

BUG=322706

Review URL: https://codereview.chromium.org/115233004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@241227 0039d316-1c4b-4281-b951-d872f2087c98
Allow enable AEC dump with sandbox.

AEC dump = WebRTC echo canceller debug recordings.

BUG=323928
R=fischman@chromium.org, jochen@chromium.org, tsepez@chromium.org

Review URL: https://codereview.chromium.org/91603002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@241228 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 241228
cc: Prevent infinite calls of advance_commit_state_timer_ timer.

advance_commit_state_timer_ should only run when the scheduler is
waiting for the commit state, so disable the timer in
ProcessScheduledActions if it is not the right state.

BUG=328326

Review URL: https://codereview.chromium.org/115373002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@241229 0039d316-1c4b-4281-b951-d872f2087c98
Always invalidate the audio device cache in the MediaStreamManager on Android.

There's no SystemMonitor on Android that will notify us when devices
are added or removed, so we need to populate the cache on every request.
There is already an up-to-date cache in the browser side audio manager
that we can rely on so the performance impact is minimal.

BUG=324464
TEST=Calling MediaStreamTrack.getSources in Chrome on Andriod should work correctly after changing the device configuration (e.g. unplug a headset).

Review URL: https://codereview.chromium.org/115823002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@241230 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 241230
SyncFS: Combined patch for SyncFS v2 fixes

Includes following patches:
https://codereview.chromium.org/103283006/
https://codereview.chromium.org/108703003/
https://codereview.chromium.org/113913009/
https://codereview.chromium.org/115793002/
https://codereview.chromium.org/109873005/

BUG=240165

Review URL: https://codereview.chromium.org/116063002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@241231 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 241231