Description[telemetry] Fix Android surface statistics collector
On Android we ask SurfaceFlinger about frame presentation times to
estimate metrics such as frame rate and jitter. This data is recorded on
a per-window basis. For applications that use SurfaceView, the
statistics are reported separately for the main application window and
the contained SurfaceView. Since we mainly care about the rendering
performance of web content, we should track the statistics for the
SurfaceView instead of the main Chrome window.
BUG=http://b/8254709
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=186801
Patch Set 1 #Patch Set 2 : Fix a typo while we're at it. #
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