crosswalk-project/crosswalk — pull request #1781 by tmpsantos (2014-04-02 13:15:58+00:00)
Title: M35 Gardening: Forward WillReleaseScriptContext to the extension dispatcher

After r254810, WillReleaseScriptContext now arrives at the RenderFrameObserver,
so we need to create a helper observer just to catch this event.

Fixes XWalkExtensionsIFrameTest.KeepingReferenceToFunctionFromDestroyedIFrame.