Call GdiAlphaBlend directly instead of the AlphaBlend wrapper in msimg32.dll....

base/clipboard_win.cc

 // Copyright (c) 2006-2008 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 <shlobj.h>
 #include <shellapi.h>
 
@@ skipping 299 matching lines @@
     ::DeleteDC(source_dc);
     ::ReleaseDC(NULL, dc);
     return;
   }
 
   HBITMAP old_hbitmap = (HBITMAP)SelectObject(compatible_dc, hbitmap);
   HBITMAP old_source = (HBITMAP)SelectObject(source_dc, source_hbitmap);
 
   // Now we need to blend it into an HBITMAP we can place on the clipboard
   BLENDFUNCTION bf = {AC_SRC_OVER, 0, 255, AC_SRC_ALPHA};
-  ::AlphaBlend(compatible_dc, 0, 0, size.width(), size.height(),
-               source_dc, 0, 0, size.width(), size.height(), bf);
+  ::GdiAlphaBlend(compatible_dc, 0, 0, size.width(), size.height(),
+                  source_dc, 0, 0, size.width(), size.height(), bf);
 
   // Clean up all the handles we just opened
   ::SelectObject(compatible_dc, old_hbitmap);
   ::SelectObject(source_dc, old_source);
   ::DeleteObject(old_hbitmap);
   ::DeleteObject(old_source);
   ::DeleteDC(compatible_dc);
   ::DeleteDC(source_dc);
   ::ReleaseDC(NULL, dc);
 
@@ skipping 363 matching lines @@
 // static
 Clipboard::FormatType Clipboard::GetFileContentFormatZeroType() {
   return ClipboardUtil::GetFileContentFormatZero()->cfFormat;
 }
 
 // static
 Clipboard::FormatType Clipboard::GetWebKitSmartPasteFormatType() {
   return ClipboardUtil::GetWebKitSmartPasteFormat()->cfFormat;
 }