Merge third_party/skia/src from https://chromium.googlesource.com/external/skia/src.git at f143d1b246913ecf9a8a26b886349f6f2666a294

This commit was generated by merge_from_chromium.py.

Change-Id: I82952cc7dae4d326d82de7b1b4f42251ca70a837