Refactor WebCore::DragImage.

Source/core/platform/chromium/DragImageRef.h

Index: Source/core/platform/chromium/DragImageRef.h
diff --git a/Source/core/platform/chromium/DragImageRef.h b/Source/core/platform/chromium/DragImageRef.h
deleted file mode 100644
index 0d03262ff0928635219f86002b7d48e316220a9c..0000000000000000000000000000000000000000
--- a/Source/core/platform/chromium/DragImageRef.h
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2008, 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
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-// 
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// 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.
-
-#ifndef DragImageRef_h
-#define DragImageRef_h
-
-class SkBitmap;
-
-namespace WebCore {
-
-struct DragImageChromium {
-    SkBitmap* bitmap;
-    float resolutionScale;
-};
-
-typedef DragImageChromium* DragImageRef;
-
-} // namespace WebCore
-
-#endif