Revert 148489 "Add support for runtime flags for experimental bl..."
Revert 148489 "Add support for runtime flags for experimental bl..."

> Add support for runtime flags for experimental blending to chromium
> BUG=154769, 229220
> 
> Review URL: https://codereview.chromium.org/13538003

Turns out this change is web-exposed.

TBR=jamesr@chromium.org

Review URL: https://codereview.chromium.org/13885006

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@148519 bbb929c8-8fbe-4397-9dbb-9b2b20218538

primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs