Add TestBrowserThreadBundle into RenderViewHostTestHarness. Kill some unnecessary real threads.

chrome/browser/extensions/script_bubble_controller_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 <string>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
@@ skipping 13 matching lines @@
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/test/test_browser_thread.h"
 
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/login/user_manager.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chrome/browser/chromeos/settings/device_settings_service.h"
 #endif
 
-using content::BrowserThread;
-
 namespace extensions {
 namespace {
 
 class ScriptBubbleControllerTest : public ChromeRenderViewHostTestHarness {
- public:
+ protected:
   ScriptBubbleControllerTest()
-      : ui_thread_(BrowserThread::UI, base::MessageLoop::current()),
-        file_thread_(BrowserThread::FILE, base::MessageLoop::current()),
-        enable_script_bubble_(FeatureSwitch::script_bubble(), true) {
+      : enable_script_bubble_(FeatureSwitch::script_bubble(), true) {
   }
 
   virtual void SetUp() OVERRIDE {
     ChromeRenderViewHostTestHarness::SetUp();
+#if defined OS_CHROMEOS
+  test_user_manager_.reset(new chromeos::ScopedTestUserManager());
+#endif
     CommandLine command_line(CommandLine::NO_PROGRAM);
     Profile* profile =
         Profile::FromBrowserContext(web_contents()->GetBrowserContext());
     extension_service_ = static_cast<TestExtensionSystem*>(
         ExtensionSystem::Get(profile))->CreateExtensionService(
             &command_line, base::FilePath(), false);
     extension_service_->Init();
 
     TabHelper::CreateForWebContents(web_contents());
 
     script_bubble_controller_ =
         TabHelper::FromWebContents(web_contents())->script_bubble_controller();
   }
 
- protected:
+  virtual void TearDown() OVERRIDE {
+#if defined OS_CHROMEOS
+    test_user_manager_.reset();
+#endif
+    ChromeRenderViewHostTestHarness::TearDown();
+  }
+
   int tab_id() {
     return ExtensionTabUtil::GetTabId(web_contents());
   }
 
   ExtensionService* extension_service_;
   ScriptBubbleController* script_bubble_controller_;
 
  private:
-  content::TestBrowserThread ui_thread_;
-  content::TestBrowserThread file_thread_;
   FeatureSwitch::ScopedOverride enable_script_bubble_;
 
 #if defined OS_CHROMEOS
   chromeos::ScopedTestDeviceSettingsService test_device_settings_service_;
   chromeos::ScopedTestCrosSettings test_cros_settings_;
-  chromeos::ScopedTestUserManager test_user_manager_;
+  scoped_ptr<chromeos::ScopedTestUserManager> test_user_manager_;
 #endif
 };
 
 TEST_F(ScriptBubbleControllerTest, Basics) {
 #if defined(OS_WIN)
   base::FilePath root(FILE_PATH_LITERAL("c:\\"));
 #else
   base::FilePath root(FILE_PATH_LITERAL("/root"));
 #endif
   scoped_refptr<const Extension> extension1 =
@@ skipping 91 matching lines @@
       web_contents(), executing_scripts, 0, GURL());
   EXPECT_EQ(3u, script_bubble_controller_->extensions_running_scripts().size());
 
   // Navigating away resets the badge.
   NavigateAndCommit(GURL("http://www.google.com"));
   EXPECT_EQ(0u, script_bubble_controller_->extensions_running_scripts().size());
 };
 
 }  // namespace
 }  // namespace extensions