Auto-rebaseline for r172887

http://src.chromium.org/viewvc/blink?view=revision&revision=172887

BUG=320139
TBR=leviw@chromium.org

Review URL: https://codereview.chromium.org/269523002

git-svn-id: svn://svn.chromium.org/blink/trunk@173027 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Get rid of extra clipping of composited layers in CompositedLayerMapping::updateCompositedBounds().

This was originally added in r63452 (*), as an optimization to avoid really large composited layers that
extend offscreen. This is no longer necessary, since Chrome uses a tiling architecture for all layers
(Safari, at least at the time, used a single texture for the entire layer).

(*) http://src.chromium.org/viewvc/blink?view=revision&revision=63452

BUG=

Review URL: https://codereview.chromium.org/266453008

git-svn-id: svn://svn.chromium.org/blink/trunk@173030 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Clamping the number of repetitions when using the repeat() function.

The ED suggests now to be able to clamp the number of repetitions when
using the repeat() function, taking precautions about excessive memory
usage.

BUG=79180

Review URL: https://codereview.chromium.org/251643002

git-svn-id: svn://svn.chromium.org/blink/trunk@173031 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Support both prefixed and unprefixed AudioContext and OfflineAudioContext.

Per the discussion at https://groups.google.com/a/chromium.org/d/msg/blink-dev/LKKoAVKcqYo/3FuTOErjjZgJ add back support for prefixed AudioContext and OfflineAudioContext.

BUG=

Review URL: https://codereview.chromium.org/259103002

git-svn-id: svn://svn.chromium.org/blink/trunk@173032 bbb929c8-8fbe-4397-9dbb-9b2b20218538