Cherry pick "Add source frame number to LayerTreeImpl::AsValueInto"

Add source frame number to LayerTreeImpl::AsValueInto

Will help work around
https://code.google.com/p/trace-viewer/issues/detail?id=587

R=enne

Review URL: https://codereview.chromium.org/495423003

Cr-Commit-Position: refs/heads/master@{#291573}

Chromium change: 929378a002b5756a9f8501e292c157ecedfa36bb
Bug: 17315710

Change-Id: Ia409efc82e1d5d011906846c0c3304e0f36c4987
1 file changed