Merge RenderWidget into single subclass, RenderPart

Source/core/frame/FrameView.cpp

Index: Source/core/frame/FrameView.cpp
diff --git a/Source/core/frame/FrameView.cpp b/Source/core/frame/FrameView.cpp
index 45e333d40163e98382cb41ec151153ddfe6c8ff5..349a798bc723391e4fbb7ba380e8a0961b88921d 100644
--- a/Source/core/frame/FrameView.cpp
+++ b/Source/core/frame/FrameView.cpp
@@ -66,7 +66,6 @@
 #include "core/rendering/RenderScrollbarPart.h"
 #include "core/rendering/RenderTheme.h"
 #include "core/rendering/RenderView.h"
-#include "core/rendering/RenderWidget.h"
 #include "core/rendering/TextAutosizer.h"
 #include "core/rendering/compositing/CompositedLayerMapping.h"
 #include "core/rendering/compositing/CompositedSelectionBound.h"
@@ -1040,19 +1039,19 @@ RenderBox* FrameView::embeddedContentBox() const
 }
 
 
-void FrameView::addWidget(RenderWidget* object)
+void FrameView::addWidget(RenderPart* object)
 {
     m_widgets.add(object);
 }
 
-void FrameView::removeWidget(RenderWidget* object)
+void FrameView::removeWidget(RenderPart* object)
 {
     m_widgets.remove(object);
 }
 
 void FrameView::updateWidgetPositions()
 {
-    WillBeHeapVector<RefPtrWillBeMember<RenderWidget> > widgets;
+    WillBeHeapVector<RefPtrWillBeMember<RenderPart> > widgets;
     copyToVector(m_widgets, widgets);
 
     // Script or plugins could detach the frame so abort processing if that happens.