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This test creates a WebRTC peer connection between two tabs and measures the trace
events added on the tab receiving remote video. It does connection with different
codecs to create the different scenarios of HW decode(texture) and SW decode(memory).
Based on these events, it provides stats about the lifetime of a video frame that
is played in a MediaStream backed <video> tag.

The plan is to run this test on WebRTC Chromium bots and make it available for other
projects that are very sensitive about display latency.

Bug: 818352
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.android:android_optional_gpu_tests_rel
Change-Id: I023bea19c9e2271d153f1062d0ec73624c96148b
Reviewed-on: https://chromium-review.googlesource.com/947418Reviewed-by: Sadrul Chowdhury <sadrul@chromium.org>
Reviewed-by: danakj <danakj@chromium.org>
Reviewed-by: Tommi <tommi@chromium.org>
Reviewed-by: Sergey Ulanov <sergeyu@chromium.org>
Reviewed-by: Patrik Höglund <phoglund@chromium.org>
Commit-Queue: Emircan Uysaler <emircan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#541698}