Simplify the magic required to create IPC message headers a bit.

chrome/test/automation/tab_proxy.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/test/automation/tab_proxy.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/string16.h"
@@ skipping 211 matching lines @@
 
   bool status = false;
   sender_->Send(new AutomationMsg_NavigationAsyncWithDisposition(0,
                                                                  handle_,
                                                                  url,
                                                                  disposition,
                                                                  &status));
   return status;
 }
 
-#if defined(OS_WIN)
-// TODO(port): Get rid of HWND.
-bool TabProxy::GetHWND(HWND* hwnd) const {
-  if (!is_valid())
-    return false;
-  if (!hwnd) {
-    NOTREACHED();
-    return false;
-  }
-
-  return sender_->Send(new AutomationMsg_TabHWND(0, handle_, hwnd));
-}
-#endif  // defined(OS_WIN)
-
 bool TabProxy::GetProcessID(int* process_id) const {
   if (!is_valid())
     return false;
 
   if (!process_id) {
     NOTREACHED();
     return false;
   }
 
   return sender_->Send(new AutomationMsg_TabProcessID(0, handle_, process_id));
@@ skipping 583 matching lines @@
                                                       json));
 }
 
 void TabProxy::FirstObjectAdded() {
   AddRef();
 }
 
 void TabProxy::LastObjectRemoved() {
   Release();
 }