Revert 34951 - Combine ViewHostMsg_{Paint,Scroll}Rect into one IPC....

chrome/browser/renderer_host/render_process_host.h

 // Copyright (c) 2009 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.
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_H_
 
 #include <set>
 #include <string>
 
@@ skipping 147 matching lines @@
   // the specified render widget.
   virtual void CancelResourceRequests(int render_widget_id) = 0;
 
   // Called on the UI thread to simulate a ClosePage_ACK message to the
   // ResourceDispatcherHost.  Necessary for a cross-site request, in the case
   // that the original RenderViewHost is not live and thus cannot run an
   // onunload handler.
   virtual void CrossSiteClosePageACK(
       const ViewMsg_ClosePage_Params& params) = 0;
 
-  // Called on the UI thread to wait for the next UpdateRect message for the
+  // Called on the UI thread to wait for the next PaintRect message for the
   // specified render widget.  Returns true if successful, and the msg out-
-  // param will contain a copy of the received UpdateRect message.
-  virtual bool WaitForUpdateMsg(int render_widget_id,
-                                const base::TimeDelta& max_delay,
-                                IPC::Message* msg) = 0;
+  // param will contain a copy of the received PaintRect message.
+  virtual bool WaitForPaintMsg(int render_widget_id,
+                               const base::TimeDelta& max_delay,
+                               IPC::Message* msg) = 0;
 
   // Called when a received message cannot be decoded.
   virtual void ReceivedBadMessage(uint32 msg_type) = 0;
 
   // Track the count of visible widgets. Called by listeners to register and
   // unregister visibility.
   virtual void WidgetRestored() = 0;
   virtual void WidgetHidden() = 0;
 
   // Called when RenderView is created by a listener.
@@ skipping 119 matching lines @@
 // Factory object for RenderProcessHosts. Using this factory allows tests to
 // swap out a different one to use a TestRenderProcessHost.
 class RenderProcessHostFactory {
  public:
   virtual ~RenderProcessHostFactory() {}
   virtual RenderProcessHost* CreateRenderProcessHost(
       Profile* profile) const = 0;
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_H_