Rolling webkit_revision 125909->125966

Rolling webkit_revision 125909->125966
TBR=kbr@google.com
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=152260

[epoger, 2012-08-18 11:57:11]

Current snapshot of https://goto.google.com/GardeningLiveWithEpoger , which
gives me complete confidence that this will land cleanly, is below.  If I broke
anything and am not online, email me or call my cell (+1-919-278-7437)

===========

Current failures:

“Canary Chromium test buildbots” and “Canary Performance buildbots”
http://build.chromium.org/p/chromium.webkit/waterfall?builder=Win%20Builder&b...

as of Saturday 04:03 Pacific

Win7 Perf: ignoring known failure http://crbug.com/134570
('DromaeoTest.DOMCorePerf is failing')
Chrome Frame Tests is offline; it had been flakily failing chrome_frame_tests,
anyway. ignoring.

Win (dbg)
failed update_scripts in
http://build.chromium.org/p/chromium.webkit/builders/Win%20%28dbg%29/builds/7412
, but it succeeded in the previous run (and it’s not a code issue anyway).
ignoring.

Linux Tests
failed these 2 browser_tests in
http://build.chromium.org/p/chromium.webkit/builders/Linux%20Tests/builds/23235
… but these particular tests have been flaky. ignoring.
OffscreenTabKeyboardEvents
PrerenderInfiniteLoopMultiple

===========

Corresponding non-perf Chromium bots (which pull Webkit at webkit_revision in
DEPS)
http://build.chromium.org/p/chromium/waterfall?builder=Win+Builder&builder=XP...

as of Saturday 03:46 Pacific
all green
previously... Chrome Frame Tests (ie8) flakily failing chrome_frame_tests;
ignoring