Consolidate Browser Creation.

chrome/browser/ui/cocoa/one_click_signin_bubble_controller_unittest.mm

 // Copyright (c) 2012 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.
 
 #import "chrome/browser/ui/cocoa/one_click_signin_bubble_controller.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
@@ skipping 14 matching lines @@
  public:
   OneClickSigninBubbleControllerTest()
       : weak_ptr_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)),
         start_sync_callback_(
             base::Bind(&OneClickSigninBubbleControllerTest::OnStartSync,
                        weak_ptr_factory_.GetWeakPtr())) {}
 
   virtual void SetUp() {
     CocoaProfileTest::SetUp();
     BrowserWindowCocoa* browser_window =
-        static_cast<BrowserWindowCocoa*>(CreateBrowserWindow());
+        static_cast<BrowserWindowCocoa*>(browser()->window());
     controller_.reset(
         [[OneClickSigninBubbleController alloc]
             initWithBrowserWindowController:browser_window->cocoa_controller()
                            start_sync_callback:start_sync_callback_]);
   }
 
   virtual void TearDown() {
     controller_.reset();
     CocoaProfileTest::TearDown();
   }
@@ skipping 48 matching lines @@
 // Callback should be called to setup sync with default settings.
 TEST_F(OneClickSigninBubbleControllerTest, ShowAndClose) {
   EXPECT_CALL(*this, OnStartSync(
       OneClickSigninSyncStarter::SYNC_WITH_DEFAULT_SETTINGS)).Times(1);
 
   [controller_ showWindow:nil];
   [controller_.release() close];
 }
 
 }  // namespace