Have ScopedClipboardWriter and Clipboard::WriteObjects take a buffer parameter.

ui/base/clipboard/clipboard_aurax11.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/base/clipboard/clipboard.h"
 
 #include <list>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
@@ skipping 437 matching lines @@
 
 Clipboard::Clipboard() {
   // Make sure clipboard is created.
   GetClipboard();
 }
 
 Clipboard::~Clipboard() {
   DeleteClipboard();
 }
 
-void Clipboard::WriteObjects(const ObjectMap& objects) {
+void Clipboard::WriteObjects(Buffer buffer, const ObjectMap& objects) {
+  DCHECK(IsValidBuffer(buffer));
   for (ObjectMap::const_iterator iter = objects.begin();
        iter != objects.end(); ++iter) {
     DispatchObject(static_cast<ObjectType>(iter->first), iter->second);
   }
   ClipboardDataBuilder::CommitToClipboard();
 }
 
 bool Clipboard::IsFormatAvailable(const FormatType& format,
                                   Buffer buffer) const {
   DCHECK(IsValidBuffer(buffer));
@@ skipping 167 matching lines @@
   return type;
 }
 
 // static
 const Clipboard::FormatType& Clipboard::GetWebCustomDataFormatType() {
   CR_DEFINE_STATIC_LOCAL(FormatType, type, (kMimeTypeWebCustomData));
   return type;
 }
 
 }  // namespace ui