The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ba0333059d47c4a9baa604d0def3ce2b3f6afee3

commit ba0333059d47c4a9baa604d0def3ce2b3f6afee3
Author: liberato <liberato@chromium.org>
Date: Wed Jul 20 23:37:46 2016

Add FramesSentAsOverlay UMA metric to AVDA.

This metric records frames sent by AVDA, bucketed by whether they
are or are not overlays.

The goal is to provide an approximate count of how often SurfaceView
is used versus SurfaceTexture.

BUG= 629313 

Review-Url: https://codereview.chromium.org/2163513002
Cr-Commit-Position: refs/heads/master@{#406712}

[modify] https://crrev.com/ba0333059d47c4a9baa604d0def3ce2b3f6afee3/media/gpu/android_video_decode_accelerator.cc
[modify] https://crrev.com/ba0333059d47c4a9baa604d0def3ce2b3f6afee3/tools/metrics/histograms/histograms.xml

requesting merge to m53 so we get more historical data.

Your change meets the bar and is auto-approved for M53 (branch: 2785)

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/64b719b4aa1328c47db531cc8438e4bee24d1637

commit 64b719b4aa1328c47db531cc8438e4bee24d1637
Author: liberato <liberato@chromium.org>
Date: Thu Jul 21 16:54:31 2016

[M53] Add FramesSentAsOverlay UMA metric to AVDA.

Merge to M53 of https://codereview.chromium.org/2163513002 .

This metric records frames sent by AVDA, bucketed by whether they
are or are not overlays.

The goal is to provide an approximate count of how often SurfaceView
is used versus SurfaceTexture.

BUG= 629313 
NOPRESUBMIT=true
NOTRY=true
TBR=watk@chromium.org,isherman@chromium.org

Review-Url: https://codereview.chromium.org/2166953003
Cr-Commit-Position: refs/branch-heads/2785@{#264}
Cr-Branched-From: 68623971be0cfc492a2cb0427d7f478e7b214c24-refs/heads/master@{#403382}

[modify] https://crrev.com/64b719b4aa1328c47db531cc8438e4bee24d1637/media/gpu/android_video_decode_accelerator.cc
[modify] https://crrev.com/64b719b4aa1328c47db531cc8438e4bee24d1637/tools/metrics/histograms/histograms.xml