Reapplies all the IPC system work (reverts the revert r56272).

chrome/renderer/webplugin_delegate_pepper.cc

 // Copyright (c) 2010 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.
 
 #define PEPPER_APIS_ENABLED 1
 
 #include "chrome/renderer/webplugin_delegate_pepper.h"
 
 #include <string>
 #include <vector>
 
 #if defined(OS_LINUX)
 #include <unistd.h>
 #endif
 
 #include "base/file_path.h"
 #include "base/file_util.h"
+#include "base/histogram.h"
 #if defined(OS_MACOSX)
 #include "base/mac_util.h"
 #endif
 #include "base/md5.h"
 #include "base/message_loop.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
 #if defined(OS_MACOSX)
 #include "base/scoped_cftyperef.h"
 #endif
@@ skipping 1728 matching lines @@
   CGRect bounds;
   bounds.origin.x = dest_rect.x();
   bounds.origin.y = canvas_height - dest_rect.y() - dest_rect.height();
   bounds.size.width = dest_rect.width();
   bounds.size.height = dest_rect.height();
 
   CGContextDrawImage(canvas, bounds, image);
   CGContextRestoreGState(canvas);
 }
 #endif  // defined(OS_MACOSX)