Roll Chrome into Mojo.

This roll corresponds to:
https://chromium.googlesource.com/chromium/src/+/d3cf92cac313434de99ae66f6e3e12d27ab536ef

GN now requires python_binary_module to be undefined rather than an empty string.

Context lines in cc_strip_video.patch changed.

Minor edits were required for sky:
Change to Skia header file organization.
SkRect::intersect now warns if ignored.

BUG=https://code.google.com/p/chromium/issues/detail?id=401761
R=jamesr@chromium.org

Review URL: https://codereview.chromium.org/839143002