[ImageResource 4] Split ImageResource into Resource and Image parts

third_party/WebKit/Source/core/page/DragController.cpp

 /*
  * Copyright (C) 2007, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 28 matching lines @@
 #include "core/dom/Node.h"
 #include "core/dom/Text.h"
 #include "core/dom/shadow/ShadowRoot.h"
 #include "core/editing/DragCaretController.h"
 #include "core/editing/EditingUtilities.h"
 #include "core/editing/Editor.h"
 #include "core/editing/FrameSelection.h"
 #include "core/editing/commands/DragAndDropCommand.h"
 #include "core/editing/serializers/Serialization.h"
 #include "core/events/TextEvent.h"
-#include "core/fetch/ImageResource.h"
+#include "core/fetch/ImageResourceContent.h"
 #include "core/fetch/ResourceFetcher.h"
 #include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
 #include "core/html/HTMLAnchorElement.h"
 #include "core/html/HTMLFormElement.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/html/HTMLPlugInElement.h"
 #include "core/input/EventHandler.h"
@@ skipping 762 matching lines @@
     node = startNode;
   } else {
     // If the cursor isn't over a selection, then just drag the node we found
     // earlier.
     DCHECK_EQ(dragType, DragSourceActionNone);
     dragType = candidateDragType;
   }
   return node;
 }
 
-static ImageResource* getImageResource(Element* element) {
+static ImageResourceContent* getImageResource(Element* element) {
   DCHECK(element);
   LayoutObject* layoutObject = element->layoutObject();
   if (!layoutObject || !layoutObject->isImage())
     return nullptr;
   LayoutImage* image = toLayoutImage(layoutObject);
   return image->cachedImage();
 }
 
 static Image* getImage(Element* element) {
   DCHECK(element);
-  ImageResource* cachedImage = getImageResource(element);
+  ImageResourceContent* cachedImage = getImageResource(element);
   return (cachedImage && !cachedImage->errorOccurred())
              ? cachedImage->getImage()
              : nullptr;
 }
 
 static void prepareDataTransferForImageDrag(LocalFrame* source,
                                             DataTransfer* dataTransfer,
                                             Element* node,
                                             const KURL& linkURL,
                                             const KURL& imageURL,
@@ skipping 378 matching lines @@
 }
 
 DEFINE_TRACE(DragController) {
   visitor->trace(m_page);
   visitor->trace(m_documentUnderMouse);
   visitor->trace(m_dragInitiator);
   visitor->trace(m_fileInputElementUnderMouse);
 }
 
 }  // namespace blink