Merge third_party/skia/gyp from https://chromium.googlesource.com/external/skia/gyp.git at 0eeb9c68a7d8629935845dd62b56103533f98ee7

This commit was generated by merge_from_chromium.py.

Change-Id: I9cce7aee6706b6f7a4c1ac00dfb35a645de4efd5