Register clipboard image blob in the browser process to copy data less.

third_party/WebKit/public/platform/WebClipboard.h

 /*
  * 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 13 matching lines @@
  * 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 WebClipboard_h
 #define WebClipboard_h
 
-#include "WebCommon.h"
-#include "WebData.h"
-#include "WebImage.h"
-#include "WebString.h"
-#include "WebURL.h"
-#include "WebVector.h"
+#include "public/platform/WebBlobInfo.h"
+#include "public/platform/WebCommon.h"
+#include "public/platform/WebImage.h"
+#include "public/platform/WebString.h"
+#include "public/platform/WebURL.h"
+#include "public/platform/WebVector.h"
 
 namespace blink {
 
 class WebDragData;
 class WebImage;
 class WebURL;
 
 class WebClipboard {
 public:
     enum Format {
@@ skipping 20 matching lines @@
         Buffer, bool* containsFilenames) { return WebVector<WebString>(); }
     virtual WebString readPlainText(Buffer) { return WebString(); }
     // fragmentStart and fragmentEnd are indexes into the returned markup that
     // indicate the start and end of the fragment if the returned markup
     // contains additional context. If there is no additional context,
     // fragmentStart will be zero and fragmentEnd will be the same as the length
     // of the returned markup.
     virtual WebString readHTML(
         Buffer buffer, WebURL* pageURL, unsigned* fragmentStart,
         unsigned* fragmentEnd) { return WebString(); }
-    virtual WebData readImage(Buffer) { return WebData(); }
+    virtual WebBlobInfo readImage(Buffer) { return WebBlobInfo(); }
     virtual WebString readCustomData(
         Buffer, const WebString& type) { return WebString(); }
 
     virtual void writePlainText(const WebString&) { }
     virtual void writeHTML(
         const WebString& htmlText, const WebURL&,
         const WebString& plainText, bool writeSmartPaste) { }
     virtual void writeImage(
         const WebImage&, const WebURL&, const WebString& title) { }
     virtual void writeDataObject(const WebDragData&) { }
 
 protected:
     ~WebClipboard() { }
 };
 
 } // namespace blink
 
 #endif