Make automation proxy objects to ref_counted. That allows to process async no...

chrome/test/automation/window_proxy.cc

 // Copyright (c) 2006-2008 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/window_proxy.h"
 
 #include <vector>
 #include <algorithm>
 
 #include "base/gfx/rect.h"
@@ skipping 100 matching lines @@
 
   if (!view_id) {
     NOTREACHED();
     return false;
   }
 
   return sender_->Send(new AutomationMsg_GetFocusedViewID(0, handle_,
                                                           view_id));
 }
 
-BrowserProxy* WindowProxy::GetBrowser() {
+scoped_refptr<BrowserProxy> WindowProxy::GetBrowser() {
   return GetBrowserWithTimeout(base::kNoTimeout, NULL);
 }
 
-BrowserProxy* WindowProxy::GetBrowserWithTimeout(uint32 timeout_ms,
-                                                 bool* is_timeout) {
+scoped_refptr<BrowserProxy> WindowProxy::GetBrowserWithTimeout(
+    uint32 timeout_ms, bool* is_timeout) {
   if (!is_valid())
-    return false;
+    return NULL;
 
   bool handle_ok = false;
   int browser_handle = 0;
 
   sender_->Send(new AutomationMsg_BrowserForWindow(0, handle_, &handle_ok,
                                                    &browser_handle));
   if (!handle_ok)
     return NULL;
 
-  return new BrowserProxy(sender_, tracker_, browser_handle);
+  BrowserProxy* browser =
+      static_cast<BrowserProxy*>(tracker_->GetResource(browser_handle));
+  if (!browser) {
+    browser = new BrowserProxy(sender_, tracker_, browser_handle);
+    browser->AddRef();
+  }
+
+  // Since there is no scoped_refptr::attach.
+  scoped_refptr<BrowserProxy> result;
+  result.swap(&browser);
+  return result;
 }