Create a message filter for message port messages. This allows a nice cleanu...

chrome/browser/renderer_host/render_widget_host.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.
 
 #include "chrome/browser/renderer_host/render_widget_host.h"
 
 #include "app/keyboard_codes.h"
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/message_loop.h"
@@ skipping 373 matching lines @@
     Send(new ViewMsg_Repaint(routing_id_, current_size_));
   }
 
   // When we have asked the RenderWidget to resize, and we are still waiting on
   // a response, block for a little while to see if we can't get a response
   // before returning the old (incorrectly sized) backing store.
   if (resize_ack_pending_ || !backing_store) {
     IPC::Message msg;
     TimeDelta max_delay = TimeDelta::FromMilliseconds(kPaintMsgTimeoutMS);
     if (process_->WaitForUpdateMsg(routing_id_, max_delay, &msg)) {
-      ViewHostMsg_UpdateRect::Dispatch(
-          &msg, this, &RenderWidgetHost::OnMsgUpdateRect);
+      OnMessageReceived(msg);
       backing_store = BackingStoreManager::GetBackingStore(this, current_size_);
     }
   }
 
   return backing_store;
 }
 
 BackingStore* RenderWidgetHost::AllocBackingStore(const gfx::Size& size) {
   if (!view_)
     return NULL;
@@ skipping 14 matching lines @@
     repaint_start_time_ = TimeTicks::Now();
     repaint_ack_pending_ = true;
     Send(new ViewMsg_Repaint(routing_id_, current_size_));
   }
 
   // When we have asked the RenderWidget to resize, and we are still waiting on
   // a response, block for a little while to see if we can't get a response.
   // We always block on response because we do not have a backing store.
   IPC::Message msg;
   TimeDelta max_delay = TimeDelta::FromMilliseconds(kPaintMsgTimeoutMS);
-  if (process_->WaitForUpdateMsg(routing_id_, max_delay, &msg)) {
-    ViewHostMsg_UpdateRect::Dispatch(
-        &msg, this, &RenderWidgetHost::OnMsgUpdateRect);
-  }
+  if (process_->WaitForUpdateMsg(routing_id_, max_delay, &msg))
+    OnMessageReceived(msg);
 }
 
 void RenderWidgetHost::StartHangMonitorTimeout(TimeDelta delay) {
   if (CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisableHangMonitor)) {
     return;
   }
 
   // If we already have a timer that will expire at or before the given delay,
   // then we have nothing more to do now.  If we have set our end time to null
@@ skipping 797 matching lines @@
     return;
 
   for (int i = 0; i < static_cast<int>(deferred_plugin_handles_.size()); i++) {
 #if defined(TOOLKIT_USES_GTK)
     view_->CreatePluginContainer(deferred_plugin_handles_[i]);
 #endif
   }
 
   deferred_plugin_handles_.clear();
 }