Rebaseline some tests affected by recent blink changes.

TBR=dpranke
BUG=

Review URL: https://codereview.chromium.org/17176032

git-svn-id: svn://svn.chromium.org/blink/trunk@152924 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Mark another flaky test.

TBR=dpranke

Review URL: https://codereview.chromium.org/17444016

git-svn-id: svn://svn.chromium.org/blink/trunk@152925 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Revert "Remove MediaStreamDescriptor and call/use WebMediaStream directly (attempt #3)" (r152913).

Speculative revert to fix VideoDestination browser_tests failures.

(Sorry if this turns out to be a mis-fire).

TBR=pilgrim@chromium.org
BUG=

Review URL: https://codereview.chromium.org/17553017

git-svn-id: svn://svn.chromium.org/blink/trunk@152926 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Do not clamp image to source rectangle for HTMLCanvasElement.

Added a flag to GraphicsContext to determine whether clamping should be used.
It is on by default and flagged off in HTMLCanvasElement.

BUG=165711

Review URL: https://chromiumcodereview.appspot.com/17385016

git-svn-id: svn://svn.chromium.org/blink/trunk@152927 bbb929c8-8fbe-4397-9dbb-9b2b20218538