Merge RenderWidget into single subclass, RenderPart

Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 155 matching lines @@
 #include "core/page/Chrome.h"
 #include "core/page/ChromeClient.h"
 #include "core/page/EventHandler.h"
 #include "core/page/EventWithHitTestResults.h"
 #include "core/page/FocusController.h"
 #include "core/page/FrameTree.h"
 #include "core/page/Page.h"
 #include "core/page/PointerLockController.h"
 #include "core/page/scrolling/ScrollingCoordinator.h"
 #include "core/rendering/HitTestResult.h"
+#include "core/rendering/RenderPart.h"
 #include "core/rendering/RenderView.h"
-#include "core/rendering/RenderWidget.h"
 #include "core/rendering/TextAutosizer.h"
 #include "core/rendering/compositing/RenderLayerCompositor.h"
 #include "core/svg/SVGDocumentExtensions.h"
 #include "core/svg/SVGFontFaceElement.h"
 #include "core/svg/SVGTitleElement.h"
 #include "core/svg/SVGUseElement.h"
 #include "core/workers/SharedWorkerRepositoryClient.h"
 #include "core/xml/XSLTProcessor.h"
 #include "core/xml/parser/XMLDocumentParser.h"
 #include "platform/DateComponents.h"
@@ skipping 117 matching lines @@
     //
     // Note: We generalize this to all "blank" URLs and invalid URLs because we
     // treat all of these URLs as about:blank.
     //
     return url.isEmpty() || url.protocolIsAbout();
 }
 
 static Widget* widgetForElement(const Element& focusedElement)
 {
     RenderObject* renderer = focusedElement.renderer();
-    if (!renderer || !renderer->isWidget())
+    if (!renderer || !renderer->isRenderPart())
         return 0;
-    return toRenderWidget(renderer)->widget();
+    return toRenderPart(renderer)->widget();
 }
 
 static bool acceptsEditingFocus(const Element& element)
 {
     ASSERT(element.hasEditableStyle());
 
     return element.document().frame() && element.rootEditableElement();
 }
 
 static bool canAccessAncestor(const SecurityOrigin& activeSecurityOrigin, const Frame* targetFrame)
@@ skipping 5526 matching lines @@
 using namespace blink;
 void showLiveDocumentInstances()
 {
     WeakDocumentSet& set = liveDocumentSet();
     fprintf(stderr, "There are %u documents currently alive:\n", set.size());
     for (WeakDocumentSet::const_iterator it = set.begin(); it != set.end(); ++it) {
         fprintf(stderr, "- Document %p URL: %s\n", *it, (*it)->url().string().utf8().data());
     }
 }
 #endif