Remove DOM prefix from plugins IDL interfaces

Source/bindings/scripts/CodeGeneratorV8.pm

 # Copyright (C) 2005, 2006 Nikolas Zimmermann <zimmermann@kde.org>
 # Copyright (C) 2006 Anders Carlsson <andersca@mac.com>
 # Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
 # Copyright (C) 2006 Alexey Proskuryakov <ap@webkit.org>
 # Copyright (C) 2006 Apple Computer, Inc.
 # Copyright (C) 2007, 2008, 2009, 2012 Google Inc.
 # Copyright (C) 2009 Cameron McCormack <cam@mcc.id.au>
 # Copyright (C) Research In Motion Limited 2010. All rights reserved.
 # Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
 # Copyright (C) 2012 Ericsson AB. All rights reserved.
@@ skipping 480 matching lines @@
 END
     if (GetGenerateIsReachable($interface) eq  "ImplDocument" ||
         GetGenerateIsReachable($interface) eq  "ImplElementRoot" ||
         GetGenerateIsReachable($interface) eq  "ImplOwnerRoot" ||
         GetGenerateIsReachable($interface) eq  "ImplOwnerNodeRoot") {
 
         AddToImplIncludes("bindings/v8/V8GCController.h");
 
         my $methodName;
         $methodName = "document" if (GetGenerateIsReachable($interface) eq "ImplDocument");
-        $methodName = "element" if (GetGenerateIsReachable($interface) eq "ImplElementRoot");
+        if (GetGenerateIsReachable($interface) eq "ImplElementRoot") {
+            $methodName = "element";
+            # Include Element.h so that the implicit cast from Element* to Node* compiles.
+            AddToImplIncludes("core/dom/Element.h");

[do-not-use, 2013/05/16 22:38:21]

I was getting the following error locally without this fix:
gen/webcore/bindings/V8DOMStringMap.cpp: In static member function ‘static void*
WebCore::V8DOMStringMap::opaqueRootForGC(void*, v8::Persistent<v8::Object>,
v8::Isolate*)’:
gen/webcore/bindings/V8DOMStringMap.cpp:65:37: error: cannot convert
‘WebCore::Element*’ to ‘WebCore::Node*’ in initialization

2 of the 3 try bots were also experiencing the same compilation error. For some
reason, the issue is not reproducible without my patch (although visibly
unrelated). 

+        }
         $methodName = "owner" if (GetGenerateIsReachable($interface) eq "ImplOwnerRoot");
         $methodName = "ownerNode" if (GetGenerateIsReachable($interface) eq "ImplOwnerNodeRoot");
 
         $code .= <<END;
     if (Node* owner = impl->${methodName}())
         return V8GCController::opaqueRootForGC(owner, isolate);
 END
     }
 
     $code .= <<END;
@@ skipping 4918 matching lines @@
         if ($currentInterface->extendedAttributes->{$extendedAttribute}) {
             $found = 1;
         }
         return 1 if $found;
     }, 0);
 
     return $found;
 }
 
 1;