Fix WebGL context restoration logic. The retry mechanism was broken when the ownership of the WebGraphicsContext3D was transferred to the DrawingBuffer.

The Telemetry based context loss test is being made more of a stress test to verify this fix. Will also attempt to make the WebGL conformance tests more stressful to catch the underlying race condition more reliably.

BUG=365904

Review URL: https://codereview.chromium.org/254453002

git-svn-id: svn://svn.chromium.org/blink/trunk@172465 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Auto-rebaseline for r172422

http://src.chromium.org/viewvc/blink?view=revision&revision=172422

BUG=361729
TBR=enne@chromium.org

Review URL: https://codereview.chromium.org/258593002

git-svn-id: svn://svn.chromium.org/blink/trunk@172466 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Make <iframe> containing SVG behave as every other <iframe>

When an SVG is contained inside an <iframe>, its dimensions should not
be part of size calculations of the <iframe>. Neither should the SVG's
own width and height be ignored when sizing the <svg> inside the
<iframe>

The specification waters are murky here but this aligns Blink with
Firefox and IE.

BUG=308992,364051

Review URL: https://codereview.chromium.org/246933007

git-svn-id: svn://svn.chromium.org/blink/trunk@172467 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Add a comment to allowConnectingInsecureWebSocket in Settings.in

This was to be included in this change, but I forgot to upload the
latest copy.
https://codereview.chromium.org/246893014/

This comment was suggested by abarth@ in this comment.
https://codereview.chromium.org/246893014/#msg12

BUG=85271

Review URL: https://codereview.chromium.org/254563002

git-svn-id: svn://svn.chromium.org/blink/trunk@172468 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: SourceURL suffix in the script on file system should not break workspace mapping.

Drive-by: Remove extra "var" in the BreakpointsSidebarPane

BUG=365604
R=pfeldman, loislo

Review URL: https://codereview.chromium.org/258573002

git-svn-id: svn://svn.chromium.org/blink/trunk@172469 bbb929c8-8fbe-4397-9dbb-9b2b20218538