[Webkit-unassigned] [Bug 111094] New: clearMemoryCaches of QWebSettings should call GC to release references of CachedResource

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=111094

           Summary: clearMemoryCaches of QWebSettings should call GC to
                    release references of CachedResource
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Major
          Priority: P2
         Component: WebKit Qt
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ararunprasad at gmail.com
                CC: ararunprasad at gmail.com, ArunPrasadR at nds.com


Created an attachment (id=190759)
 --> (https://bugs.webkit.org/attachment.cgi?id=190759&action=review)
Initial patch

In certain situations clearing the WebKit's MemoryCache using QWebSettings::clearMemoryCaches doesn't releases all CachedResource to system. It is due to holding of CachedResource by dead but yet to Garbage Collectable objects.

This is required for memory constrained environments(CE devices like set-top box) where deletion of QWebView object + QWebSettings::clearMemoryCaches() should release all the CachedResource like QPixmap.

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