Remove calls to deprecated MessageLoop methods in chrome.

chrome/browser/metrics/chromeos_metrics_provider_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/metrics/chromeos_metrics_provider.h"
 
 #include <string>
 
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
 #include "chrome/browser/chromeos/login/users/fake_chrome_user_manager.h"
 #include "chrome/browser/chromeos/login/users/scoped_user_manager_enabler.h"
 #include "chrome/browser/metrics/chromeos_metrics_provider.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/dbus/power_manager_client.h"
 #include "chromeos/login/login_state.h"
 #include "components/metrics/proto/system_profile.pb.h"
 #include "components/user_manager/user_manager.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "content/public/test/test_utils.h"
@@ skipping 100 matching lines @@
 };
 
 // Wrapper around ChromeOSMetricsProvider that initializes
 // BluetoothAdapter in the constructor.
 class TestChromeOSMetricsProvider : public ChromeOSMetricsProvider {
  public:
   TestChromeOSMetricsProvider() {
     InitTaskGetBluetoothAdapter(
         base::Bind(&TestChromeOSMetricsProvider::GetBluetoothAdapterCallback,
                    base::Unretained(this)));
-    base::MessageLoop::current()->Run();
+    base::RunLoop().Run();
   }
   void GetBluetoothAdapterCallback() {
     ASSERT_TRUE(base::MessageLoop::current()->is_running());
     base::MessageLoop::current()->QuitWhenIdle();
   }
 };
 
 TEST_F(ChromeOSMetricsProviderTest, MultiProfileUserCount) {
   const AccountId account_id1(AccountId::FromUserEmail("user1@example.com"));
   const AccountId account_id2(AccountId::FromUserEmail("user2@example.com"));
@@ skipping 137 matching lines @@
   EXPECT_EQ(0x030DU, device1.product_id());
   EXPECT_EQ(0x0306U, device1.device_id());
 
   // The Confirm Passkey object, this has no Device ID information.
   EXPECT_EQ(FakeBluetoothDeviceClient::kConfirmPasskeyClass,
             device2.bluetooth_class());
   EXPECT_EQ(PairedDevice::DEVICE_PHONE, device2.type());
   EXPECT_EQ(0x207D74U, device2.vendor_prefix());
   EXPECT_EQ(PairedDevice::VENDOR_ID_UNKNOWN, device2.vendor_id_source());
 }