Make nesting/running states a RunLoop rather than a MessageLoop concept.

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"
@@ skipping 114 matching lines @@
 // BluetoothAdapter in the constructor.
 class TestChromeOSMetricsProvider : public ChromeOSMetricsProvider {
  public:
   TestChromeOSMetricsProvider() {
     InitTaskGetBluetoothAdapter(
         base::Bind(&TestChromeOSMetricsProvider::GetBluetoothAdapterCallback,
                    base::Unretained(this)));
     base::RunLoop().Run();
   }
   void GetBluetoothAdapterCallback() {
-    ASSERT_TRUE(base::MessageLoop::current()->is_running());
+    ASSERT_TRUE(base::RunLoop::IsRunningOnCurrentThread());
     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"));
   const AccountId account_id3(AccountId::FromUserEmail("user3@example.com"));
 
   // |scoped_enabler| takes over the lifetime of |user_manager|.
@@ skipping 134 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());
 }