Move Frame to the Oilpan heap.

Source/web/DragClientImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 15 matching lines @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "web/DragClientImpl.h"
 
 #include "core/clipboard/DataObject.h"
 #include "core/clipboard/DataTransfer.h"
+#include "core/frame/FrameProtector.h"
 #include "core/frame/LocalFrame.h"
 #include "platform/DragImage.h"
 #include "platform/geometry/IntSize.h"
 #include "platform/graphics/skia/NativeImageSkia.h"
 #include "public/platform/WebCommon.h"
 #include "public/platform/WebDragData.h"
 #include "public/platform/WebImage.h"
 #include "public/platform/WebPoint.h"
 #include "public/web/WebDragOperation.h"
 #include "public/web/WebViewClient.h"
 #include "web/WebViewImpl.h"
 #include "wtf/Assertions.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 DragDestinationAction DragClientImpl::actionMaskForDrag(DragData*)
 {
     if (m_webView->client() && m_webView->client()->acceptsLoadDrops())
         return DragDestinationActionAny;
 
     return static_cast<DragDestinationAction>(
         DragDestinationActionDHTML | DragDestinationActionEdit);
 }
 
 void DragClientImpl::startDrag(DragImage* dragImage, const IntPoint& dragImageOrigin, const IntPoint& eventPos, DataTransfer* dataTransfer, LocalFrame* frame, bool isLinkDrag)
 {
     // Add a ref to the frame just in case a load occurs mid-drag.
-    RefPtr<LocalFrame> frameProtector = frame;
+    FrameProtector frameProtector(frame);
 
     WebDragData dragData(dataTransfer->dataObject());
     WebDragOperationsMask dragOperationMask = static_cast<WebDragOperationsMask>(dataTransfer->sourceOperation());
     WebImage image;
     IntSize offsetSize(eventPos - dragImageOrigin);
     WebPoint offsetPoint(offsetSize.width(), offsetSize.height());
 
     if (dragImage) {
         float resolutionScale = dragImage->resolutionScale();
         if (m_webView->deviceScaleFactor() != resolutionScale) {
             ASSERT(resolutionScale > 0);
             float scale = m_webView->deviceScaleFactor() / resolutionScale;
             dragImage->scale(scale, scale);
         }
         image = dragImage->bitmap();
     }
 
     m_webView->startDragging(frame, dragData, dragOperationMask, image, offsetPoint);
 }
 
 } // namespace blink