[Webkit-unassigned] [Bug 122777] New: Assertion failure in Range::processContentsBetweenOffsets

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=122777

           Summary: Assertion failure in
                    Range::processContentsBetweenOffsets
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Keywords: BlinkMergeCandidate
          Severity: Normal
          Priority: P2
         Component: HTML DOM
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rniwa at webkit.org
                CC: darin at apple.com, ap at webkit.org, andersca at apple.com


Merge https://chromium.googlesource.com/chromium/blink/+/c15de182774c7859c20d97126eb844ae97b792a4

https://code.google.com/p/chromium/issues/detail?id=240594

Make Range::processContentsBetweenOffsets() to handle node modification by mutation event handler

This patch changes ASSERT statements for checking |endOffset| inbound in Range::processContentsBetweenOffsets() to limit |endOffset|. This situation can be happened when DOMNodeRemovedFromDocument event handler splits text nodes, Range::insertNode() on text node, in the range calling Range::deleteContents().

This is the last part of fixing issue 240594.

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