Input event filtering and compositor thread setup.

content/renderer/render_widget.cc

 // Copyright (c) 2011 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 "content/renderer/render_widget.h"
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 448 matching lines @@
     if (!processed && webwidget_)
       processed = webwidget_->handleInputEvent(*input_event);
   }
 
   // If this RawKeyDown event corresponds to a browser keyboard shortcut and
   // it's not processed by webkit, then we need to suppress the upcoming Char
   // events.
   if (!processed && is_keyboard_shortcut)
     suppress_next_char_events_ = true;
 
-  IPC::Message* response = new ViewHostMsg_HandleInputEvent_ACK(routing_id_);
-  response->WriteInt(input_event->type);
-  response->WriteBool(processed);
+  IPC::Message* response =
+      new ViewHostMsg_HandleInputEvent_ACK(routing_id_, input_event->type,
+                                           processed);
 
   if ((input_event->type == WebInputEvent::MouseMove ||
        input_event->type == WebInputEvent::MouseWheel ||
        input_event->type == WebInputEvent::TouchMove) &&
       paint_aggregator_.HasPendingUpdate()) {
     // We want to rate limit the input events in this case, so we'll wait for
     // painting to finish before ACKing this message.
     if (pending_input_event_ack_.get()) {
       // As two different kinds of events could cause us to postpone an ack
       // we send it now, if we have one pending. The Browser should never
@@ skipping 915 matching lines @@
     if (i->window == window) {
       plugin_window_moves_.erase(i);
       break;
     }
   }
 }
 
 bool RenderWidget::WillHandleMouseEvent(const WebKit::WebMouseEvent& event) {
   return false;
 }