Add TestBrowserThreadBundle into RenderViewHostTestHarness. Kill some unnecessary real threads.

chrome/browser/download/download_target_determiner_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 "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/message_loop.h"
 #include "base/observer_list.h"
 #include "base/prefs/pref_service.h"
 #include "base/run_loop.h"
@@ skipping 160 matching lines @@
       const DownloadTargetDeterminerDelegate::ReservedPathCallback& callback);
   static void NullPromptUser(
       DownloadItem* download, const base::FilePath& suggested_path,
       const FileSelectedCallback& callback);
   static void NullDetermineLocalPath(
       DownloadItem* download, const base::FilePath& virtual_path,
       const LocalPathCallback& callback);
 };
 
 class DownloadTargetDeterminerTest : public ChromeRenderViewHostTestHarness {
- public:
-  DownloadTargetDeterminerTest();
-
+ protected:
   // ::testing::Test
   virtual void SetUp() OVERRIDE;
   virtual void TearDown() OVERRIDE;
 
   // Creates MockDownloadItem and sets up default expectations.
   content::MockDownloadItem* CreateActiveDownloadItem(
       int32 id,
       const DownloadTestCase& test_case);
 
   // Sets the AutoOpenBasedOnExtension user preference for |path|.
@@ skipping 52 matching lines @@
                               DownloadItem::TargetDisposition disposition,
                               content::DownloadDangerType danger_type,
                               const base::FilePath& intermediate_path);
 
   scoped_ptr<DownloadPrefs> download_prefs_;
   ::testing::NiceMock<MockDownloadTargetDeterminerDelegate> delegate_;
   NullWebContentsDelegate web_contents_delegate_;
   base::ScopedTempDir test_download_dir_;
   base::FilePath test_virtual_dir_;
   base::FilePath last_selected_directory_;
-  content::TestBrowserThread ui_thread_;
-  content::TestBrowserThread file_thread_;
 };
 
-DownloadTargetDeterminerTest::DownloadTargetDeterminerTest()
-    : ChromeRenderViewHostTestHarness(),
-      ui_thread_(content::BrowserThread::UI, &message_loop_),
-      file_thread_(content::BrowserThread::FILE, &message_loop_) {
-}
-
 void DownloadTargetDeterminerTest::SetUp() {
   ChromeRenderViewHostTestHarness::SetUp();
   CHECK(profile());
   download_prefs_.reset(new DownloadPrefs(profile()));
   web_contents()->SetDelegate(&web_contents_delegate_);
   ASSERT_TRUE(test_download_dir_.CreateUniqueTempDir());
   test_virtual_dir_ = test_download_dir().Append(FILE_PATH_LITERAL("virtual"));
   SetDefaultDownloadPath(test_download_dir());
   delegate_.SetupDefaults();
 }
 
 void DownloadTargetDeterminerTest::TearDown() {
   download_prefs_.reset();
-  message_loop_.RunUntilIdle();
   ChromeRenderViewHostTestHarness::TearDown();
 }
 
 content::MockDownloadItem*
 DownloadTargetDeterminerTest::CreateActiveDownloadItem(
     int32 id,
     const DownloadTestCase& test_case) {
   content::MockDownloadItem* item =
       new ::testing::NiceMock<content::MockDownloadItem>();
   GURL download_url(test_case.url);
@@ skipping 1182 matching lines @@
       .WillOnce(WithArg<2>(
           ScheduleCallback2(overridden_path,
                             DownloadPathReservationTracker::UNIQUIFY)));
   EXPECT_CALL(*delegate(),
               PromptUserForDownloadPath(_, full_overridden_path, _))
       .WillOnce(WithArg<2>(
           ScheduleCallback(full_overridden_path)));
   RunTestCase(test_case, item.get());
 }
 }  // namespace