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This CL implements two types of tracing flows:

1. Embed Flow: The flow from allocating a LocalSurfaceId to embedding it in
a SurfaceLayer and SurfaceLayerImpl for the first time until a reference is
added for the first time to a parent CompositorFrame.

2. Submission Flow: The flow from allocating a LocalSurfaceId to passing it
to the child to use to submit CompositorFrames.

These flows let us debug surface synchronization performance regressions and
lets one visually see the parallelism achieved with surface synchronization.

Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I02b7baec283e60528faa24dffdca74b641135d2e
Bug: 672962
Reviewed-on: https://chromium-review.googlesource.com/1124976
Commit-Queue: Fady Samuel <fsamuel@chromium.org>
Reviewed-by: Saman Sami <samans@chromium.org>
Cr-Commit-Position: refs/heads/master@{#572429}