Add TestBrowserThreadBundle into RenderViewHostTestHarness. Kill some unnecessary real threads.

chrome/browser/automation/automation_tab_helper_unittest.cc

 // 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.
 
 #include <map>
 
 #include "base/basictypes.h"
 #include "chrome/browser/automation/automation_tab_helper.h"
 #include "chrome/browser/automation/mock_tab_event_observer.h"
 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
 #include "content/public/test/test_browser_thread.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using content::BrowserThread;
 using testing::_;
 
 class AutomationTabHelperTest : public ChromeRenderViewHostTestHarness {
  public:
-  AutomationTabHelperTest()
-      : ChromeRenderViewHostTestHarness(),
-        browser_thread_(BrowserThread::UI, &message_loop_) {}
-
-  virtual void SetUp() {
+  virtual void SetUp() OVERRIDE {
     ChromeRenderViewHostTestHarness::SetUp();
     AutomationTabHelper::CreateForWebContents(web_contents());
     mock_observer_.StartObserving(tab_helper());
   }
 
  protected:
   // These are here so that we don't have to add each test as a
   // |AutomationTabHelper| friend.
   void StartLoading() {
     tab_helper()->DidStartLoading(NULL);
@@ skipping 12 matching lines @@
   }
 
   void CompleteOrCancelClientRedirect(int64 frame_id) {
     tab_helper()->OnDidCompleteOrCancelClientRedirect(frame_id);
   }
 
   AutomationTabHelper* tab_helper() {
     return AutomationTabHelper::FromWebContents(web_contents());
   }
 
-  content::TestBrowserThread browser_thread_;
-
   MockTabEventObserver mock_observer_;
 };
 
 ACTION_P2(CheckHasPendingLoads, tab_helper, has_pending_loads) {
   EXPECT_EQ(has_pending_loads, tab_helper->has_pending_loads());
 }
 
 TEST_F(AutomationTabHelperTest, AddAndRemoveObserver) {
   testing::MockFunction<void()> check;
 
@@ skipping 135 matching lines @@
 
   testing::InSequence expect_in_sequence;
   EXPECT_CALL(mock_observer_, OnFirstPendingLoad(web_contents()));
   EXPECT_CALL(mock_observer_, OnNoMorePendingLoads(web_contents()));
 
   StartLoading();
   WillPerformClientRedirect(1);
   WebContentsDestroyed();
   EXPECT_FALSE(tab_helper()->has_pending_loads());
 }