Dump more information for layers/transform node

- cc::TransformNode::flattens_inherited_transform

- ccLayerId and ccContentsLayerId in GraphicsLayerAsJSON for matching
  blink and cc layers

TBR=chrishtr@chromium.org # for trivial change in cc

Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_layout_tests_slimming_paint_v2;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I03ce50e44bca724a2d5b6b9a88ce38bc7d2d2835
Reviewed-on: https://chromium-review.googlesource.com/1225871
Commit-Queue: Xianzhu Wang <wangxianzhu@chromium.org>
Reviewed-by: Philip Rogers <pdr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#591410}
2 files changed