Merge 196825 "Resume WebKit shared timers only in previously sus..."

Merge 196825 "Resume WebKit shared timers only in previously sus..."

> Resume WebKit shared timers only in previously suspended processes.
> 
> WebKitPlatformSupportImpl (living in the renderer process) maintains a counter
> of calls to ResumeSharedTimer() and SuspendSharedTimer(). ResumeSharedTimer()
> naturally completes only if SuspendSharedTimer() was called previously. This
> implies that the IPC triggering ResumeSharedTimer() must be sent only to the
> renderer processes that were previously suspended as opposed to all the current
> renderer processes.
> 
> BUG=b/8639231,b/8656786,225243
> 
> Review URL: https://codereview.chromium.org/14297022

TBR=pliard@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=196849

[kareng, 2013-04-26 22:01:34]

Committed patchset #1 manually as r196849.