Update other unittests to use newly added TestingBrowserProcess::GetGlobal().

chrome/browser/chromeos/display/display_preferences_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/chromeos/display/display_preferences.h"
 
 #include "ash/display/display_controller.h"
 #include "ash/screen_ash.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
@@ skipping 10 matching lines @@
 namespace {
 
 class DisplayPreferencesTest : public ash::test::AshTestBase {
  protected:
   DisplayPreferencesTest() : ash::test::AshTestBase() {}
   virtual ~DisplayPreferencesTest() {}
 
   virtual void SetUp() OVERRIDE {
     ash::test::AshTestBase::SetUp();
     RegisterDisplayLocalStatePrefs(&local_state_);
-    TestingBrowserProcess* browser_process =
-        static_cast<TestingBrowserProcess*>(g_browser_process);
-    browser_process->SetLocalState(&local_state_);
+    TestingBrowserProcess::GetGlobal()->SetLocalState(&local_state_);
   }
 
   virtual void TearDown() OVERRIDE {
-    TestingBrowserProcess* browser_process =
-        static_cast<TestingBrowserProcess*>(g_browser_process);
-    browser_process->SetLocalState(NULL);
+    TestingBrowserProcess::GetGlobal()->SetLocalState(NULL);
     ash::test::AshTestBase::TearDown();
   }
 
   void LoggedInAsUser() {
     EXPECT_CALL(*mock_user_manager_.user_manager(), IsUserLoggedIn())
         .WillRepeatedly(testing::Return(true));
     EXPECT_CALL(*mock_user_manager_.user_manager(), IsLoggedInAsDemoUser())
         .WillRepeatedly(testing::Return(false));
     EXPECT_CALL(*mock_user_manager_.user_manager(), IsLoggedInAsGuest())
         .WillRepeatedly(testing::Return(false));
@@ skipping 176 matching lines @@
   gfx::Screen* screen = gfx::Screen::GetNativeScreen();
   EXPECT_EQ(id2, screen->GetPrimaryDisplay().id());
   EXPECT_EQ(ash::DisplayLayout::BOTTOM,
             display_controller->GetCurrentDisplayLayout().position);
   EXPECT_EQ(-10, display_controller->GetCurrentDisplayLayout().offset);
   EXPECT_EQ("176x178", screen->GetPrimaryDisplay().bounds().size().ToString());
 }
 
 }  // namespace
 }  // namespace chromeos