[Webkit-unassigned] [Bug 73195] New: [chromium] Disable compositing for RTL pages even in forceCompositingMode

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=73195

           Summary: [chromium] Disable compositing for RTL pages even in
                    forceCompositingMode
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: falken at chromium.org
                CC: vangelis at chromium.org, enne at google.com


It seems the forceCompositingMode overrides the checks that normally disable GPU compositing on RTL pages, and this is causing renderer hangs.  Since forceCompositingMode is on by default in Chrome OS R15 and R16, we probably don't want this.

I have prepared a patch, but am not too sure it is the correct thing.  I verified at least it stops the renderer hang on RTL pages on ToT Linux.

The corresponding Chrome OS bug is http://code.google.com/p/chromium-os/issues/detail?id=20666

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