Move flash clipboard to the new proxy and add custom format support

ui/base/clipboard/clipboard_win.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.
 
 // Many of these functions are based on those found in
 // webkit/port/platform/PasteboardWin.cpp
 
 #include "ui/base/clipboard/clipboard.h"
 
 #include <shlobj.h>
@@ skipping 809 matching lines @@
 // static
 const Clipboard::FormatType& Clipboard::GetWebCustomDataFormatType() {
   CR_DEFINE_STATIC_LOCAL(
       FormatType,
       type,
       (ClipboardUtil::GetWebCustomDataFormat()->cfFormat));
   return type;
 }
 
 // static
+const Clipboard::FormatType& Clipboard::GetPepperCustomDataFormatType() {
+  CR_DEFINE_STATIC_LOCAL(
+      FormatType,
+      type,
+      (ClipboardUtil::GetPepperCustomDataFormat()->cfFormat));
+  return type;
+}
+
+// static
 void Clipboard::FreeData(unsigned int format, HANDLE data) {
   if (format == CF_BITMAP)
     ::DeleteObject(static_cast<HBITMAP>(data));
   else
     ::GlobalFree(data);
 }
 
 HWND Clipboard::GetClipboardWindow() const {
   if (!clipboard_owner_ && create_window_) {
     clipboard_owner_ = ::CreateWindow(L"ClipboardOwnerWindowClass",
                                       L"ClipboardOwnerWindow",
                                       0, 0, 0, 0, 0,
                                       HWND_MESSAGE,
                                       0, 0, 0);
   }
   return clipboard_owner_;
 }
 
 }  // namespace ui