[Webkit-unassigned] [Bug 31288] New: Add a function to show render tree for debugging

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=31288

           Summary: Add a function to show render tree for debugging
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: hamaji at chromium.org


RenderObject::showTree only dumps DOM tree and we cannot see anonymous render
nodes. WebCore::externalRepresentation dumps a render tree. But it has two
issues: 1. it calls RenderObject::layout() as a side effect. This may cause
crash in some contexts and 2. it returns the tree as a String instead of
outputting to stderr, which isn't so convenient.

So, it would be OK to add another function to dump the render tree.

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