trimmed stable release 31.0.1650.63
Merge remote-tracking branch 'origin/feature/caretColor/30.0.1599.101' into feature/caretColor/31.0.1650.63

Conflicts:
	chromium/src/third_party/WebKit/Source/core/rendering/style/RenderStyle.h
Fix compile errors for v31

* StyleColor -> Color (https://chromiumcodereview.appspot.com/23581008)
* StyleResolverState uses Document references
  (https://chromiumcodereview.appspot.com/23601011)