Merge third_party/skia/src from https://chromium.googlesource.com/a/external/skia/src.git at 00c17d6d0924e6c26c17ac1762ae68fb52c88ff8

This commit was generated by merge_from_chromium.py.

Change-Id: I2b170f77aaaf074e0025c597291680dad77f8579