[Webkit-unassigned] [Bug 76225] Release WebGL contexts eagerly

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=76225





--- Comment #5 from yongsheng <yongsheng.zhu at intel.com>  2012-01-20 01:46:21 PST ---
FrameDestructionObserver doesn't make sense here because the frame seems not be destroyed if refreshing a page or switching to a new case. I find that when refreshing or a new page, Frame calls the 'detach' function of the document before the new dom tree is created. So i think in HTMLCanvasElement, by overriding the virtual 'detach' function, the WebGLRenderingContext and drawingbuffer can be freed. What's your opinion?

Another question, is it enough to do the test 'fast/canvas/webgl' of layout tests for this issue?

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