aura: Allow specifying the size of TestScreen when creating it.

chrome/browser/signin/signin_error_notifier_ash_unittest.cc

 // Copyright 2014 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/signin/signin_error_notifier_ash.h"
 
 #include "ash/test/ash_test_base.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/notifications/notification.h"
@@ skipping 61 matching lines @@
 
     profile_manager_.reset(
         new TestingProfileManager(TestingBrowserProcess::GetGlobal()));
     ASSERT_TRUE(profile_manager_->SetUp());
 
     TestingBrowserProcess::GetGlobal();
     AshTestBase::SetUp();
 
     // Set up screen for Windows.
 #if defined(OS_WIN)
-    aura::TestScreen* test_screen = aura::TestScreen::Create();
+    aura::TestScreen* test_screen = aura::TestScreen::Create(gfx::Size());
     gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_NATIVE, test_screen);
     gfx::Screen::SetScreenTypeDelegate(new ScreenTypeDelegateDesktop);
 #endif
 
     error_controller_ =
         ProfileOAuth2TokenServiceFactory::GetForProfile(profile_.get())->
             signin_error_controller();
     SigninErrorNotifierFactory::GetForProfile(profile_.get());
     notification_ui_manager_ = g_browser_process->notification_ui_manager();
   }
@@ skipping 138 matching lines @@
       EXPECT_FALSE(notification->title().empty());
       EXPECT_FALSE(notification->message().empty());
       EXPECT_EQ((size_t)1, notification->buttons().size());
     }
   }
 }
 #endif
 
 }  // namespace test
 }  // namespace ash