Add TestBrowserThreadBundle into RenderViewHostTestHarness. Kill some unnecessary real threads.

chrome/browser/notifications/desktop_notification_service_unittest.cc

 // Copyright (c) 2011 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/notifications/desktop_notification_service.h"
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/synchronization/waitable_event.h"
 #include "chrome/browser/notifications/desktop_notification_service_factory.h"
 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/public/test/test_browser_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebNotificationPresenter.h"
 
-using content::BrowserThread;
-
-namespace {
-
-// The HasPermission method of the DesktopNotificationService wants to be called
-// on the IO thread. This class routes calls to the cache on the IO thread.
-class ThreadProxy : public base::RefCountedThreadSafe<ThreadProxy> {
- public:
-  ThreadProxy()
-      : io_event_(false, false),
-        ui_event_(false, false),
-        permission_(WebKit::WebNotificationPresenter::PermissionAllowed) {
-    // The current message loop was already initalized by the test superclass.
-    ui_thread_.reset(
-        new content::TestBrowserThread(BrowserThread::UI,
-                                       MessageLoop::current()));
-
-    // Create IO thread, start its message loop.
-    io_thread_.reset(new content::TestBrowserThread(BrowserThread::IO));
-    io_thread_->Start();
-
-    // Calling PauseIOThread() here isn't safe, because the runnable method
-    // could complete before the constructor is done, deleting |this|.
-  }
-
-  // Call the HasPermission method of the DesktopNotificationService on the IO
-  // thread and returns the permission setting.
-  WebKit::WebNotificationPresenter::Permission ServiceHasPermission(
-      DesktopNotificationService* service,
-      const GURL& url) {
-    DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-    BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
-        base::Bind(&ThreadProxy::ServiceHasPermissionIO, this, service, url));
-    io_event_.Signal();
-    ui_event_.Wait();  // Wait for IO thread to be done.
-    BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
-                            base::Bind(&ThreadProxy::PauseIOThreadIO, this));
-
-    return permission_;
-  }
-
-  void PauseIOThread() {
-    BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
-                            base::Bind(&ThreadProxy::PauseIOThreadIO, this));
-  }
-
-  void DrainIOThread() {
-    DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-    io_event_.Signal();
-    io_thread_->Stop();
-  }
-
- private:
-  friend class base::RefCountedThreadSafe<ThreadProxy>;
-  ~ThreadProxy() {
-     DrainIOThread();
-  }
-
-  void PauseIOThreadIO() {
-    DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-    io_event_.Wait();
-  }
-
-  void ServiceHasPermissionIO(DesktopNotificationService* service,
-                              const GURL& url) {
-    DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-    permission_ = service->HasPermission(url);
-    ui_event_.Signal();
-  }
-
-  base::WaitableEvent io_event_;
-  base::WaitableEvent ui_event_;
-  scoped_ptr<content::TestBrowserThread> ui_thread_;
-  scoped_ptr<content::TestBrowserThread> io_thread_;
-
-  WebKit::WebNotificationPresenter::Permission permission_;
-};
-
-}  // namespace
-
 class DesktopNotificationServiceTest : public ChromeRenderViewHostTestHarness {
- public:
-  DesktopNotificationServiceTest() {
-  }
-
+ protected:
   virtual void SetUp() {
     ChromeRenderViewHostTestHarness::SetUp();
-    proxy_ = new ThreadProxy;
-    proxy_->PauseIOThread();
 
     // Creates the destop notification service.
     service_ = DesktopNotificationServiceFactory::GetForProfile(profile());
   }
 
-  virtual void TearDown() {
-    // The io thread's waiting on the io_event_ might hold a ref to |proxy_|,
-    // preventing its destruction. Clear that ref.
-    proxy_->DrainIOThread();
-    ChromeRenderViewHostTestHarness::TearDown();
-  }
-
   DesktopNotificationService* service_;
-  scoped_refptr<ThreadProxy> proxy_;
 };
 
 TEST_F(DesktopNotificationServiceTest, SettingsForSchemes) {
   GURL url("file:///html/test.html");
 
   EXPECT_EQ(CONTENT_SETTING_ASK,
             service_->GetDefaultContentSetting(NULL));
   EXPECT_EQ(WebKit::WebNotificationPresenter::PermissionNotAllowed,
-            proxy_->ServiceHasPermission(service_, url));
+            service_->HasPermission(url));
 
   service_->GrantPermission(url);
   EXPECT_EQ(WebKit::WebNotificationPresenter::PermissionAllowed,
-            proxy_->ServiceHasPermission(service_, url));
+            service_->HasPermission(url));
 
   service_->DenyPermission(url);
   EXPECT_EQ(WebKit::WebNotificationPresenter::PermissionDenied,
-            proxy_->ServiceHasPermission(service_, url));
+            service_->HasPermission(url));
 
   GURL https_url("https://testurl");
   GURL http_url("http://testurl");
   EXPECT_EQ(CONTENT_SETTING_ASK,
             service_->GetDefaultContentSetting(NULL));
   EXPECT_EQ(WebKit::WebNotificationPresenter::PermissionNotAllowed,
-            proxy_->ServiceHasPermission(service_, http_url));
+            service_->HasPermission(http_url));
   EXPECT_EQ(WebKit::WebNotificationPresenter::PermissionNotAllowed,
-            proxy_->ServiceHasPermission(service_, https_url));
+            service_->HasPermission(https_url));
 
   service_->GrantPermission(https_url);
   EXPECT_EQ(WebKit::WebNotificationPresenter::PermissionNotAllowed,
-            proxy_->ServiceHasPermission(service_, http_url));
+            service_->HasPermission(http_url));
   EXPECT_EQ(WebKit::WebNotificationPresenter::PermissionAllowed,
-            proxy_->ServiceHasPermission(service_, https_url));
+            service_->HasPermission(https_url));
 
   service_->DenyPermission(http_url);
   EXPECT_EQ(WebKit::WebNotificationPresenter::PermissionDenied,
-            proxy_->ServiceHasPermission(service_, http_url));
+            service_->HasPermission(http_url));
   EXPECT_EQ(WebKit::WebNotificationPresenter::PermissionAllowed,
-            proxy_->ServiceHasPermission(service_, https_url));
+            service_->HasPermission(https_url));
 }
 
 TEST_F(DesktopNotificationServiceTest, GetNotificationsSettings) {
   service_->GrantPermission(GURL("http://allowed2.com"));
   service_->GrantPermission(GURL("http://allowed.com"));
   service_->DenyPermission(GURL("http://denied2.com"));
   service_->DenyPermission(GURL("http://denied.com"));
 
   ContentSettingsForOneType settings;
   service_->GetNotificationsSettings(&settings);
@@ skipping 18 matching lines @@
   EXPECT_EQ(ContentSettingsPattern::FromURLNoWildcard(
                 GURL("http://denied2.com")),
             settings[3].primary_pattern);
   EXPECT_EQ(CONTENT_SETTING_BLOCK,
             settings[3].setting);
   EXPECT_EQ(ContentSettingsPattern::Wildcard(),
             settings[4].primary_pattern);
   EXPECT_EQ(CONTENT_SETTING_ASK,
             settings[4].setting);
 }