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

chrome/browser/policy/cloud_policy_subsystem_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 <vector>
 
 #include "base/files/scoped_temp_dir.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
@@ skipping 122 matching lines @@
         prefs::kDevicePolicyRefreshRate, 0);
 
     // Abort the test on unexpected requests.
     ON_CALL(factory(), Intercept(_, _, _, _))
        .WillByDefault(InvokeWithoutArgs(
            this,
            &CloudPolicySubsystemTestBase::StopMessageLoop));
   }
 
   virtual void TearDown() {
-    static_cast<TestingBrowserProcess*>(g_browser_process)->SetLocalState(NULL);
+    TestingBrowserProcess::GetGlobal()->SetLocalState(NULL);
     cloud_policy_subsystem_->Shutdown();
     cloud_policy_subsystem_.reset();
     data_store_.reset();
     factory_.reset();
     logger_.reset();
     prefs_.reset();
   }
 
   void ExecuteTest() {
     // Stop the test once all the expectations are met. This relies on a
@@ skipping 306 matching lines @@
 TEST_F(CloudPolicySubsystemSerialNumberRecoveryTest, SerialRequested) {
   InSequence s;
   ExpectSuccessfulRegistration();
   ExpectPolicyRequest("", true, true);
   ExpectPolicyRequest(kMachineId, false, false);
   ExpectPolicyRequest("", false, false);
   ExecuteTest();
 }
 
 }  // policy