Add TestBrowserThreadBundle into RenderViewHostTestHarness. Kill some unnecessary real threads.

chrome/browser/web_applications/web_app_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 "chrome/browser/web_applications/web_app.h"
 
 #include "base/files/file_path.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/extensions/tab_helper.h"
 #include "chrome/browser/favicon/favicon_tab_helper.h"
 #include "chrome/browser/ui/web_applications/web_app_ui.h"
 #include "chrome/common/extensions/extension_messages.h"
 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
-#include "content/public/test/test_browser_thread.h"
 #include "content/public/test/test_renderer_host.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-using content::BrowserThread;
 using content::RenderViewHostTester;
 
 class WebApplicationTest : public ChromeRenderViewHostTestHarness {
- public:
-  WebApplicationTest() : ui_thread_(BrowserThread::UI, &message_loop_) {
-  }
-
- private:
+ protected:
   virtual void SetUp() OVERRIDE {
     ChromeRenderViewHostTestHarness::SetUp();
     extensions::TabHelper::CreateForWebContents(web_contents());
     FaviconTabHelper::CreateForWebContents(web_contents());
   }
-
-  content::TestBrowserThread ui_thread_;
 };
 
 #if defined(OS_MACOSX)
 #define MAYBE_GetShortcutInfoForTab DISABLED_GetShortcutInfoForTab
 #else
 #define MAYBE_GetShortcutInfoForTab GetShortcutInfoForTab
 #endif
 TEST_F(WebApplicationTest, MAYBE_GetShortcutInfoForTab) {
   const string16 title = ASCIIToUTF16("TEST_TITLE");
   const string16 description = ASCIIToUTF16("TEST_DESCRIPTION");
@@ skipping 24 matching lines @@
 }
 
 TEST_F(WebApplicationTest, AppDirWithUrl) {
   base::FilePath profile_path(FILE_PATH_LITERAL("profile"));
   base::FilePath result(web_app::GetWebAppDataDirectory(
       profile_path, std::string(), GURL("http://example.com")));
   base::FilePath expected = profile_path.AppendASCII("Web Applications")
       .AppendASCII("example.com").AppendASCII("http_80");
   EXPECT_EQ(expected, result);
 }