Remove calls to deprecated MessageLoop methods on Windows and Linux.

device/bluetooth/bluez/bluetooth_bluez_unittest.cc

 // Copyright 2013 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 <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 #include <utility>
 
@@ skipping 204 matching lines @@
 
   void TearDown() override {
     for (ScopedVector<BluetoothDiscoverySession>::iterator iter =
              discovery_sessions_.begin();
          iter != discovery_sessions_.end(); ++iter) {
       BluetoothDiscoverySession* session = *iter;
       if (!session->IsActive())
         continue;
       callback_count_ = 0;
       session->Stop(GetCallback(), GetErrorCallback());
-      message_loop_.Run();
+      base::RunLoop().Run();
       ASSERT_EQ(1, callback_count_);
     }
     discovery_sessions_.clear();
     adapter_ = nullptr;
     bluez::BluezDBusManager::Shutdown();
   }
 
   // Generic callbacks
   void Callback() {
     ++callback_count_;
@@ skipping 63 matching lines @@
 
   void ErrorCompletionCallback(const std::string& error_message) {
     ++error_callback_count_;
     QuitMessageLoop();
   }
 
   // Call to fill the adapter_ member with a BluetoothAdapter instance.
   void GetAdapter() {
     adapter_ = new BluetoothAdapterBlueZ(base::Bind(
         &BluetoothBlueZTest::AdapterCallback, base::Unretained(this)));
-    base::MessageLoop::current()->Run();
+    base::RunLoop().Run();
     ASSERT_TRUE(adapter_.get() != nullptr);
     ASSERT_TRUE(adapter_->IsInitialized());
   }
 
   // Run a discovery phase until the named device is detected, or if the named
   // device is not created, the discovery process ends without finding it.
   //
   // The correct behavior of discovery is tested by the "Discovery" test case
   // without using this function.
   void DiscoverDevice(const std::string& address) {
     ASSERT_TRUE(adapter_.get() != nullptr);
     ASSERT_TRUE(base::MessageLoop::current() != nullptr);
     fake_bluetooth_device_client_->SetSimulationIntervalMs(10);
 
     TestBluetoothAdapterObserver observer(adapter_);
 
     adapter_->SetPowered(true, GetCallback(), GetErrorCallback());
     adapter_->StartDiscoverySession(
         base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                    base::Unretained(this)),
         GetErrorCallback());
-    base::MessageLoop::current()->Run();
+    base::RunLoop().Run();
     ASSERT_EQ(2, callback_count_);
     ASSERT_EQ(0, error_callback_count_);
     ASSERT_EQ((size_t)1, discovery_sessions_.size());
     ASSERT_TRUE(discovery_sessions_[0]->IsActive());
     callback_count_ = 0;
 
     ASSERT_TRUE(adapter_->IsPowered());
     ASSERT_TRUE(adapter_->IsDiscovering());
 
     while (!observer.device_removed_count() &&
            observer.last_device_address() != address)
-      base::MessageLoop::current()->Run();
+      base::RunLoop().Run();
 
     discovery_sessions_[0]->Stop(GetCallback(), GetErrorCallback());
-    base::MessageLoop::current()->Run();
+    base::RunLoop().Run();
     ASSERT_EQ(1, callback_count_);
     ASSERT_EQ(0, error_callback_count_);
     callback_count_ = 0;
 
     ASSERT_FALSE(adapter_->IsDiscovering());
   }
 
   // Run a discovery phase so we have devices that can be paired with.
   void DiscoverDevices() {
     // Pass an invalid address for the device so that the discovery process
@@ skipping 359 matching lines @@
 }
 
 TEST_F(BluetoothBlueZTest, StopDiscovery) {
   GetAdapter();
 
   adapter_->SetPowered(true, GetCallback(), GetErrorCallback());
   adapter_->StartDiscoverySession(
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       GetErrorCallback());
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(2, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   callback_count_ = 0;
 
   ASSERT_TRUE(adapter_->IsPowered());
   ASSERT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)1, discovery_sessions_.size());
   ASSERT_TRUE(discovery_sessions_[0]->IsActive());
 
   // Install an observer; aside from the callback, expect the
   // AdapterDiscoveringChanged method to be called and no longer to be
   // discovering,
   TestBluetoothAdapterObserver observer(adapter_);
 
   discovery_sessions_[0]->Stop(GetCallback(), GetErrorCallback());
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
 
   EXPECT_EQ(1, observer.discovering_changed_count());
   EXPECT_FALSE(observer.last_discovering());
 
   EXPECT_FALSE(adapter_->IsDiscovering());
   discovery_sessions_.clear();
   callback_count_ = 0;
 
   // Test that the Stop callbacks get called even if the
   // BluetoothDiscoverySession objects gets deleted
   adapter_->SetPowered(true, GetCallback(), GetErrorCallback());
   adapter_->StartDiscoverySession(
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       GetErrorCallback());
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(2, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   callback_count_ = 0;
   ASSERT_TRUE(adapter_->IsPowered());
   ASSERT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)1, discovery_sessions_.size());
   ASSERT_TRUE(discovery_sessions_[0]->IsActive());
 
   discovery_sessions_[0]->Stop(GetCallback(), GetErrorCallback());
   discovery_sessions_.clear();
 
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
 }
 
 TEST_F(BluetoothBlueZTest, Discovery) {
   // Test a simulated discovery session.
   fake_bluetooth_device_client_->SetSimulationIntervalMs(10);
   GetAdapter();
 
   TestBluetoothAdapterObserver observer(adapter_);
 
   adapter_->SetPowered(true, GetCallback(), GetErrorCallback());
   adapter_->StartDiscoverySession(
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       GetErrorCallback());
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(2, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   callback_count_ = 0;
 
   ASSERT_TRUE(adapter_->IsPowered());
   ASSERT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)1, discovery_sessions_.size());
   ASSERT_TRUE(discovery_sessions_[0]->IsActive());
 
   // First two devices to appear.
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(2, observer.device_added_count());
   EXPECT_EQ(bluez::FakeBluetoothDeviceClient::kLowEnergyAddress,
             observer.last_device_address());
 
   // Next we should get another two devices...
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(4, observer.device_added_count());
 
   // Okay, let's run forward until a device is actually removed...
   while (!observer.device_removed_count())
-    message_loop_.Run();
+    base::RunLoop().Run();
 
   EXPECT_EQ(1, observer.device_removed_count());
   EXPECT_EQ(bluez::FakeBluetoothDeviceClient::kVanishingDeviceAddress,
             observer.last_device_address());
 }
 
 TEST_F(BluetoothBlueZTest, PoweredAndDiscovering) {
   GetAdapter();
   adapter_->SetPowered(true, GetCallback(), GetErrorCallback());
   adapter_->StartDiscoverySession(
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       GetErrorCallback());
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(2, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   callback_count_ = 0;
   ASSERT_EQ((size_t)1, discovery_sessions_.size());
   ASSERT_TRUE(discovery_sessions_[0]->IsActive());
 
   // Stop the timers that the simulation uses
   fake_bluetooth_device_client_->EndDiscoverySimulation(
       dbus::ObjectPath(bluez::FakeBluetoothAdapterClient::kAdapterPath));
 
@@ skipping 60 matching lines @@
   EXPECT_FALSE(adapter_->IsDiscovering());
 
   // Request device discovery 3 times.
   for (int i = 0; i < 3; i++) {
     adapter_->StartDiscoverySession(
         base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                    base::Unretained(this)),
         GetErrorCallback());
   }
   // Run only once, as there should have been one D-Bus call.
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   // The observer should have received the discovering changed event exactly
   // once, the success callback should have been called 3 times and the adapter
   // should be discovering.
   EXPECT_EQ(1, observer.discovering_changed_count());
   EXPECT_EQ(3, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_TRUE(observer.last_discovering());
   EXPECT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)3, discovery_sessions_.size());
@@ skipping 32 matching lines @@
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_TRUE(observer.last_discovering());
   EXPECT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)6, discovery_sessions_.size());
 
   // Request to stop discovery 4 times.
   for (int i = 2; i < 6; i++) {
     discovery_sessions_[i]->Stop(GetCallback(), GetErrorCallback());
   }
   // Run only once, as there should have been one D-Bus call.
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   // The observer should have received the discovering changed event exactly
   // once, the success callback should have been called 4 times and the adapter
   // should no longer be discovering.
   EXPECT_EQ(2, observer.discovering_changed_count());
   EXPECT_EQ(12, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_FALSE(observer.last_discovering());
   EXPECT_FALSE(adapter_->IsDiscovering());
 
@@ skipping 30 matching lines @@
   EXPECT_FALSE(adapter_->IsDiscovering());
 
   // Request device discovery 3 times.
   for (int i = 0; i < 3; i++) {
     adapter_->StartDiscoverySession(
         base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                    base::Unretained(this)),
         GetErrorCallback());
   }
   // Run only once, as there should have been one D-Bus call.
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   // The observer should have received the discovering changed event exactly
   // once, the success callback should have been called 3 times and the adapter
   // should be discovering.
   EXPECT_EQ(1, observer.discovering_changed_count());
   EXPECT_EQ(3, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_TRUE(observer.last_discovering());
   EXPECT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)3, discovery_sessions_.size());
@@ skipping 13 matching lines @@
   // Even though bluez::FakeBluetoothAdapterClient does its own reference
   // counting and
   // we called 3 BluetoothAdapter::StartDiscoverySession 3 times, the
   // bluez::FakeBluetoothAdapterClient's count should be only 1 and a single
   // call to
   // bluez::FakeBluetoothAdapterClient::StopDiscovery should work.
   fake_bluetooth_adapter_client_->StopDiscovery(
       dbus::ObjectPath(bluez::FakeBluetoothAdapterClient::kAdapterPath),
       GetCallback(), base::Bind(&BluetoothBlueZTest::DBusErrorCallback,
                                 base::Unretained(this)));
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(2, observer.discovering_changed_count());
   EXPECT_EQ(4, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_FALSE(observer.last_discovering());
   EXPECT_FALSE(adapter_->IsDiscovering());
 
   // All discovery session instances should have been updated.
   for (int i = 0; i < 3; i++)
     EXPECT_FALSE(discovery_sessions_[i]->IsActive());
   discovery_sessions_.clear();
 
   // It should be possible to successfully start discovery.
   for (int i = 0; i < 2; i++) {
     adapter_->StartDiscoverySession(
         base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                    base::Unretained(this)),
         GetErrorCallback());
   }
   // Run only once, as there should have been one D-Bus call.
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(3, observer.discovering_changed_count());
   EXPECT_EQ(6, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_TRUE(observer.last_discovering());
   EXPECT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)2, discovery_sessions_.size());
 
   for (int i = 0; i < 2; i++)
     EXPECT_TRUE(discovery_sessions_[i]->IsActive());
 
@@ skipping 25 matching lines @@
 
   // Start and stop discovery. At this point, bluez::FakeBluetoothAdapterClient
   // has
   // a reference count that is equal to 1. Pretend that this was done by an
   // application other than us. Starting and stopping discovery will succeed
   // but it won't cause the discovery state to change.
   adapter_->StartDiscoverySession(
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       GetErrorCallback());
-  message_loop_.Run();  // Run the loop, as there should have been a D-Bus call.
+  base::RunLoop()
+      .Run();  // Run the loop, as there should have been a D-Bus call.

[Reilly Grant (use Gerrit), 2016/08/05 18:24:45]

This and below is an unfortunately wrapping. Can you move this comment to its
own line as it is in the hunk above.

[fdoray, 2016/08/05 23:41:36]

Done.

   EXPECT_EQ(5, observer.discovering_changed_count());
   EXPECT_EQ(7, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_TRUE(observer.last_discovering());
   EXPECT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)1, discovery_sessions_.size());
   EXPECT_TRUE(discovery_sessions_[0]->IsActive());
 
   discovery_sessions_[0]->Stop(GetCallback(), GetErrorCallback());
-  message_loop_.Run();  // Run the loop, as there should have been a D-Bus call.
+  base::RunLoop()
+      .Run();  // Run the loop, as there should have been a D-Bus call.
   EXPECT_EQ(5, observer.discovering_changed_count());
   EXPECT_EQ(8, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_TRUE(observer.last_discovering());
   EXPECT_TRUE(adapter_->IsDiscovering());
   EXPECT_FALSE(discovery_sessions_[0]->IsActive());
   discovery_sessions_.clear();
 
   // Start discovery again.
   adapter_->StartDiscoverySession(
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       GetErrorCallback());
-  message_loop_.Run();  // Run the loop, as there should have been a D-Bus call.
+  base::RunLoop()
+      .Run();  // Run the loop, as there should have been a D-Bus call.
   EXPECT_EQ(5, observer.discovering_changed_count());
   EXPECT_EQ(9, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_TRUE(observer.last_discovering());
   EXPECT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)1, discovery_sessions_.size());
   EXPECT_TRUE(discovery_sessions_[0]->IsActive());
 
   // Stop discovery via D-Bus. The fake client's reference count will drop but
   // the discovery state won't change since our BluetoothAdapter also just
   // requested it via D-Bus.
   fake_bluetooth_adapter_client_->StopDiscovery(
       dbus::ObjectPath(bluez::FakeBluetoothAdapterClient::kAdapterPath),
       GetCallback(), base::Bind(&BluetoothBlueZTest::DBusErrorCallback,
                                 base::Unretained(this)));
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(5, observer.discovering_changed_count());
   EXPECT_EQ(10, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_TRUE(observer.last_discovering());
   EXPECT_TRUE(adapter_->IsDiscovering());
 
   // Now end the discovery session. This should change the adapter's discovery
   // state.
   discovery_sessions_[0]->Stop(GetCallback(), GetErrorCallback());
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(6, observer.discovering_changed_count());
   EXPECT_EQ(11, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_FALSE(observer.last_discovering());
   EXPECT_FALSE(adapter_->IsDiscovering());
   EXPECT_FALSE(discovery_sessions_[0]->IsActive());
 }
 
 TEST_F(BluetoothBlueZTest, InvalidatedDiscoverySessions) {
   GetAdapter();
@@ skipping 10 matching lines @@
   EXPECT_FALSE(adapter_->IsDiscovering());
 
   // Request device discovery 3 times.
   for (int i = 0; i < 3; i++) {
     adapter_->StartDiscoverySession(
         base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                    base::Unretained(this)),
         GetErrorCallback());
   }
   // Run only once, as there should have been one D-Bus call.
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   // The observer should have received the discovering changed event exactly
   // once, the success callback should have been called 3 times and the adapter
   // should be discovering.
   EXPECT_EQ(1, observer.discovering_changed_count());
   EXPECT_EQ(3, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_TRUE(observer.last_discovering());
   EXPECT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)3, discovery_sessions_.size());
@@ skipping 16 matching lines @@
   EXPECT_TRUE(adapter_->IsDiscovering());
 
   // Stop device discovery behind the adapter. The one active discovery session
   // should become inactive, but more importantly, we shouldn't run into any
   // memory errors as the sessions that we explicitly deleted should get
   // cleaned up.
   fake_bluetooth_adapter_client_->StopDiscovery(
       dbus::ObjectPath(bluez::FakeBluetoothAdapterClient::kAdapterPath),
       GetCallback(), base::Bind(&BluetoothBlueZTest::DBusErrorCallback,
                                 base::Unretained(this)));
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(2, observer.discovering_changed_count());
   EXPECT_EQ(4, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_FALSE(observer.last_discovering());
   EXPECT_FALSE(adapter_->IsDiscovering());
   EXPECT_FALSE(discovery_sessions_[0]->IsActive());
 }
 
 TEST_F(BluetoothBlueZTest, QueuedDiscoveryRequests) {
   GetAdapter();
@@ skipping 37 matching lines @@
   }
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_EQ(1, observer.discovering_changed_count());
   EXPECT_TRUE(observer.last_discovering());
   EXPECT_TRUE(adapter_->IsDiscovering());
   EXPECT_TRUE(discovery_sessions_.empty());
 
   // Process the pending call. The queued calls should execute and the discovery
   // session reference count should increase.
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(3, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_EQ(1, observer.discovering_changed_count());
   EXPECT_TRUE(observer.last_discovering());
   EXPECT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)3, discovery_sessions_.size());
 
   // Verify the reference count by removing sessions 3 times. The last request
   // should remain pending.
   for (int i = 0; i < 3; i++) {
@@ skipping 23 matching lines @@
                  base::Unretained(this)),
       GetErrorCallback());
   EXPECT_EQ(5, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(2, observer.discovering_changed_count());
   EXPECT_FALSE(observer.last_discovering());
   EXPECT_FALSE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)3, discovery_sessions_.size());
 
   // Run the pending request.
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(6, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(3, observer.discovering_changed_count());
   EXPECT_TRUE(observer.last_discovering());
   EXPECT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)3, discovery_sessions_.size());
   EXPECT_FALSE(discovery_sessions_[2]->IsActive());
 
   // The queued request to start discovery should have been issued but is still
   // pending. Run the loop and verify.
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(7, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(3, observer.discovering_changed_count());
   EXPECT_TRUE(observer.last_discovering());
   EXPECT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)4, discovery_sessions_.size());
   EXPECT_TRUE(discovery_sessions_[3]->IsActive());
 }
 
 TEST_F(BluetoothBlueZTest, StartDiscoverySession) {
@@ skipping 10 matching lines @@
   EXPECT_EQ(0, observer.discovering_changed_count());
   EXPECT_FALSE(observer.last_discovering());
   EXPECT_FALSE(adapter_->IsDiscovering());
   EXPECT_TRUE(discovery_sessions_.empty());
 
   // Request a new discovery session.
   adapter_->StartDiscoverySession(
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       GetErrorCallback());
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(1, observer.discovering_changed_count());
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_TRUE(observer.last_discovering());
   EXPECT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)1, discovery_sessions_.size());
   EXPECT_TRUE(discovery_sessions_[0]->IsActive());
 
   // Start another session. A new one should be returned in the callback, which
   // in turn will destroy the previous session. Adapter should still be
   // discovering and the reference count should be 1.
   adapter_->StartDiscoverySession(
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       GetErrorCallback());
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(1, observer.discovering_changed_count());
   EXPECT_EQ(2, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_TRUE(observer.last_discovering());
   EXPECT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)2, discovery_sessions_.size());
   EXPECT_TRUE(discovery_sessions_[0]->IsActive());
 
   // Request a new session.
   adapter_->StartDiscoverySession(
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       GetErrorCallback());
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(1, observer.discovering_changed_count());
   EXPECT_EQ(3, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_TRUE(observer.last_discovering());
   EXPECT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)3, discovery_sessions_.size());
   EXPECT_TRUE(discovery_sessions_[1]->IsActive());
   EXPECT_NE(discovery_sessions_[0], discovery_sessions_[1]);
 
   // Stop the previous discovery session. The session should end but discovery
   // should continue.
   discovery_sessions_[0]->Stop(GetCallback(), GetErrorCallback());
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(1, observer.discovering_changed_count());
   EXPECT_EQ(4, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_TRUE(observer.last_discovering());
   EXPECT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)3, discovery_sessions_.size());
   EXPECT_FALSE(discovery_sessions_[0]->IsActive());
   EXPECT_TRUE(discovery_sessions_[1]->IsActive());
 
   // Delete the current active session. Discovery should eventually stop.
   discovery_sessions_.clear();
   while (observer.last_discovering())
-    message_loop_.RunUntilIdle();
+    base::RunLoop().RunUntilIdle();
 
   EXPECT_EQ(2, observer.discovering_changed_count());
   EXPECT_EQ(4, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_FALSE(observer.last_discovering());
   EXPECT_FALSE(adapter_->IsDiscovering());
 }
 
 TEST_F(BluetoothBlueZTest, SetDiscoveryFilterBeforeStartDiscovery) {
   // Test a simulated discovery session.
   fake_bluetooth_device_client_->SetSimulationIntervalMs(10);
   GetAdapter();
 
   TestBluetoothAdapterObserver observer(adapter_);
 
   BluetoothDiscoveryFilter* df =
       new BluetoothDiscoveryFilter(device::BLUETOOTH_TRANSPORT_LE);
   df->SetRSSI(-60);
   df->AddUUID(BluetoothUUID("1000"));
   std::unique_ptr<BluetoothDiscoveryFilter> discovery_filter(df);
 
   adapter_->SetPowered(
       true, base::Bind(&BluetoothBlueZTest::Callback, base::Unretained(this)),
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
   adapter_->StartDiscoverySessionWithFilter(
       std::move(discovery_filter),
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(2, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   callback_count_ = 0;
 
   ASSERT_TRUE(adapter_->IsPowered());
   ASSERT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)1, discovery_sessions_.size());
   ASSERT_TRUE(discovery_sessions_[0]->IsActive());
   ASSERT_TRUE(df->Equals(*discovery_sessions_[0]->GetDiscoveryFilter()));
 
   auto* filter = fake_bluetooth_adapter_client_->GetDiscoveryFilter();
   EXPECT_NE(nullptr, filter);
   EXPECT_EQ("le", *filter->transport);
   EXPECT_EQ(-60, *filter->rssi);
   EXPECT_EQ(nullptr, filter->pathloss.get());
   std::vector<std::string> uuids = *filter->uuids;
   EXPECT_NE(uuids.end(), std::find(uuids.begin(), uuids.end(), "1000"));
 
   discovery_sessions_[0]->Stop(
       base::Bind(&BluetoothBlueZTest::Callback, base::Unretained(this)),
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
 
   ASSERT_TRUE(adapter_->IsPowered());
   ASSERT_FALSE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)1, discovery_sessions_.size());
   ASSERT_FALSE(discovery_sessions_[0]->IsActive());
   ASSERT_EQ(discovery_sessions_[0]->GetDiscoveryFilter(),
             (BluetoothDiscoveryFilter*)nullptr);
@@ skipping 22 matching lines @@
   callback_count_ = 0;
 
   fake_bluetooth_adapter_client_->MakeSetDiscoveryFilterFail();
 
   adapter_->StartDiscoverySessionWithFilter(
       std::move(discovery_filter),
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(1, error_callback_count_);
   error_callback_count_ = 0;
 
   ASSERT_TRUE(adapter_->IsPowered());
   ASSERT_FALSE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)0, discovery_sessions_.size());
 
   auto* filter = fake_bluetooth_adapter_client_->GetDiscoveryFilter();
   EXPECT_EQ(nullptr, filter);
@@ skipping 37 matching lines @@
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
   adapter_->StartDiscoverySessionWithFilter(
       std::move(discovery_filter2),
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
   // Run requests, on DBus level there should be call SetDiscoveryFilter, then
   // StartDiscovery, then SetDiscoveryFilter again.
-  message_loop_.Run();
-  message_loop_.Run();
+  base::RunLoop().Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(2, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   callback_count_ = 0;
 
   ASSERT_TRUE(adapter_->IsPowered());
   ASSERT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)2, discovery_sessions_.size());
   ASSERT_TRUE(discovery_sessions_[0]->IsActive());
   ASSERT_TRUE(df->Equals(*discovery_sessions_[0]->GetDiscoveryFilter()));
@@ skipping 10 matching lines @@
   EXPECT_NE(uuids.end(), std::find(uuids.begin(), uuids.end(), "1002"));
 
   discovery_sessions_[0]->Stop(
       base::Bind(&BluetoothBlueZTest::Callback, base::Unretained(this)),
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
   discovery_sessions_[1]->Stop(
       base::Bind(&BluetoothBlueZTest::Callback, base::Unretained(this)),
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(2, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
 
   ASSERT_TRUE(adapter_->IsPowered());
   ASSERT_FALSE(adapter_->IsDiscovering());
   ASSERT_FALSE(discovery_sessions_[0]->IsActive());
   ASSERT_EQ(discovery_sessions_[0]->GetDiscoveryFilter(),
             (BluetoothDiscoveryFilter*)nullptr);
   ASSERT_FALSE(discovery_sessions_[1]->IsActive());
@@ skipping 42 matching lines @@
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
   adapter_->StartDiscoverySessionWithFilter(
       std::move(discovery_filter2),
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   // First request to SetDiscoveryFilter should fail, resulting in no session
   // being created.
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
   error_callback_count_ = 0;
 
   ASSERT_TRUE(adapter_->IsPowered());
   ASSERT_FALSE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)0, discovery_sessions_.size());
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   // Second request should succeed
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   callback_count_ = 0;
 
   ASSERT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)1, discovery_sessions_.size());
   ASSERT_TRUE(discovery_sessions_[0]->IsActive());
   ASSERT_TRUE(df2->Equals(*discovery_sessions_[0]->GetDiscoveryFilter()));
 
   auto* filter = fake_bluetooth_adapter_client_->GetDiscoveryFilter();
   EXPECT_NE(nullptr, filter);
   EXPECT_EQ("bredr", *filter->transport);
   EXPECT_EQ(-65, *filter->rssi);
   EXPECT_EQ(nullptr, filter->pathloss.get());
   auto uuids = *filter->uuids;
   EXPECT_NE(uuids.end(), std::find(uuids.begin(), uuids.end(), "1002"));
 
   discovery_sessions_[0]->Stop(
       base::Bind(&BluetoothBlueZTest::Callback, base::Unretained(this)),
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
 
   ASSERT_TRUE(adapter_->IsPowered());
   ASSERT_FALSE(adapter_->IsDiscovering());
   ASSERT_FALSE(discovery_sessions_[0]->IsActive());
   ASSERT_EQ(discovery_sessions_[0]->GetDiscoveryFilter(),
             (BluetoothDiscoveryFilter*)nullptr);
 
   filter = fake_bluetooth_adapter_client_->GetDiscoveryFilter();
   EXPECT_EQ(nullptr, filter);
 }
 
 TEST_F(BluetoothBlueZTest, SetDiscoveryFilterAfterStartDiscovery) {
   // Test a simulated discovery session.
   fake_bluetooth_device_client_->SetSimulationIntervalMs(10);
   GetAdapter();
 
   TestBluetoothAdapterObserver observer(adapter_);
 
   adapter_->SetPowered(
       true, base::Bind(&BluetoothBlueZTest::Callback, base::Unretained(this)),
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
   adapter_->StartDiscoverySession(
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(2, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   callback_count_ = 0;
 
   ASSERT_TRUE(adapter_->IsPowered());
   ASSERT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)1, discovery_sessions_.size());
   ASSERT_TRUE(discovery_sessions_[0]->IsActive());
   EXPECT_EQ(1, observer.discovering_changed_count());
   observer.Reset();
 
   auto null_instance = std::unique_ptr<BluetoothDiscoveryFilter>();
   null_instance.reset();
   ASSERT_EQ(discovery_sessions_[0]->GetDiscoveryFilter(), null_instance.get());
 
   auto* filter = fake_bluetooth_adapter_client_->GetDiscoveryFilter();
   EXPECT_EQ(nullptr, filter);
 
   BluetoothDiscoveryFilter* df =
       new BluetoothDiscoveryFilter(device::BLUETOOTH_TRANSPORT_LE);
   df->SetRSSI(-60);
   df->AddUUID(BluetoothUUID("1000"));
   std::unique_ptr<BluetoothDiscoveryFilter> discovery_filter(df);
 
   discovery_sessions_[0]->SetDiscoveryFilter(
       std::move(discovery_filter),
       base::Bind(&BluetoothBlueZTest::Callback, base::Unretained(this)),
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   callback_count_ = 0;
 
   ASSERT_TRUE(df->Equals(*discovery_sessions_[0]->GetDiscoveryFilter()));
 
   filter = fake_bluetooth_adapter_client_->GetDiscoveryFilter();
   EXPECT_NE(nullptr, filter);
   EXPECT_EQ("le", *filter->transport);
   EXPECT_EQ(-60, *filter->rssi);
   EXPECT_EQ(nullptr, filter->pathloss.get());
   std::vector<std::string> uuids = *filter->uuids;
   EXPECT_NE(uuids.end(), std::find(uuids.begin(), uuids.end(), "1000"));
 
   discovery_sessions_[0]->Stop(
       base::Bind(&BluetoothBlueZTest::Callback, base::Unretained(this)),
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
 
   ASSERT_TRUE(adapter_->IsPowered());
   ASSERT_FALSE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)1, discovery_sessions_.size());
   ASSERT_FALSE(discovery_sessions_[0]->IsActive());
   ASSERT_EQ(discovery_sessions_[0]->GetDiscoveryFilter(),
             (BluetoothDiscoveryFilter*)nullptr);
@@ skipping 40 matching lines @@
       df->AddUUID(BluetoothUUID("1003"));
       discovery_filter.reset(df);
     }
 
     adapter_->StartDiscoverySessionWithFilter(
         std::move(discovery_filter),
         base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                    base::Unretained(this)),
         base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
-    message_loop_.Run();
+    base::RunLoop().Run();
 
     if (i == 0) {
       EXPECT_EQ(1, observer.discovering_changed_count());
       observer.Reset();
 
       auto* filter = fake_bluetooth_adapter_client_->GetDiscoveryFilter();
       EXPECT_EQ("le", *filter->transport);
       EXPECT_EQ(-85, *filter->rssi);
       EXPECT_EQ(nullptr, filter->pathloss.get());
       std::vector<std::string> uuids = *filter->uuids;
@@ skipping 26 matching lines @@
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_TRUE(adapter_->IsDiscovering());
   ASSERT_EQ((size_t)3, discovery_sessions_.size());
 
   callback_count_ = 0;
   // Request to stop discovery twice.
   for (int i = 0; i < 2; i++) {
     discovery_sessions_[i]->Stop(
         base::Bind(&BluetoothBlueZTest::Callback, base::Unretained(this)),
         base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
-    message_loop_.Run();
+    base::RunLoop().Run();
 
     if (i == 0) {
       auto* filter = fake_bluetooth_adapter_client_->GetDiscoveryFilter();
       EXPECT_EQ("le", *filter->transport);
       EXPECT_EQ(-65, *filter->rssi);
       EXPECT_EQ(nullptr, filter->pathloss.get());
       std::vector<std::string> uuids = *filter->uuids;
       EXPECT_EQ(3UL, uuids.size());
       EXPECT_EQ(uuids.end(), std::find(uuids.begin(), uuids.end(), "1000"));
       EXPECT_NE(uuids.end(), std::find(uuids.begin(), uuids.end(), "1001"));
@@ skipping 57 matching lines @@
       discovery_filter.reset(df);
     }
 
     adapter_->StartDiscoverySessionWithFilter(
         std::move(discovery_filter),
         base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                    base::Unretained(this)),
         base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
     // each result in 1 requests.
-    message_loop_.Run();
+    base::RunLoop().Run();
 
     if (i == 0) {
       auto* filter = fake_bluetooth_adapter_client_->GetDiscoveryFilter();
       EXPECT_EQ("le", *filter->transport);
       EXPECT_EQ(-85, *filter->rssi);
       EXPECT_EQ(nullptr, filter->pathloss.get());
       std::vector<std::string> uuids = *filter->uuids;
       EXPECT_NE(uuids.end(), std::find(uuids.begin(), uuids.end(), "1000"));
       EXPECT_NE(uuids.end(), std::find(uuids.begin(), uuids.end(), "1003"));
       EXPECT_NE(uuids.end(), std::find(uuids.begin(), uuids.end(), "1020"));
@@ skipping 20 matching lines @@
   callback_count_ = 0;
   // Request to stop discovery 4 times.
   for (int i = 2; i < 6; i++) {
     discovery_sessions_[i]->Stop(
         base::Bind(&BluetoothBlueZTest::Callback, base::Unretained(this)),
         base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
     // filter no  2 is same as filter no 5, so removing it shouldn't cause any
     // filter update
     if (i != 2 && i != 5)
-      message_loop_.Run();
+      base::RunLoop().Run();
   }
   // Run only once, as there should have been one D-Bus call.
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   // The success callback should have been called 4 times and the adapter should
   // no longer be discovering.
   EXPECT_EQ(4, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
   EXPECT_FALSE(adapter_->IsDiscovering());
   EXPECT_EQ(1, observer.discovering_changed_count());
 
   // All discovery sessions should be inactive.
   for (int i = 0; i < 6; i++)
@@ skipping 16 matching lines @@
   df->SetRSSI(-15);
   df->AddUUID(BluetoothUUID("1000"));
   std::unique_ptr<BluetoothDiscoveryFilter> discovery_filter(df);
 
   adapter_->StartDiscoverySessionWithFilter(
       std::move(discovery_filter),
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   auto* filter = fake_bluetooth_adapter_client_->GetDiscoveryFilter();
   EXPECT_EQ("le", *filter->transport);
   EXPECT_EQ(-15, *filter->rssi);
   EXPECT_EQ(nullptr, filter->pathloss.get());
   std::vector<std::string> uuids = *filter->uuids;
   EXPECT_NE(uuids.end(), std::find(uuids.begin(), uuids.end(), "1000"));
 
   df = new BluetoothDiscoveryFilter(device::BLUETOOTH_TRANSPORT_LE);
   df->SetRSSI(-60);
   df->AddUUID(BluetoothUUID("1020"));
   df->AddUUID(BluetoothUUID("1001"));
   discovery_filter = std::unique_ptr<BluetoothDiscoveryFilter>(df);
 
   adapter_->StartDiscoverySessionWithFilter(
       std::move(discovery_filter),
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   filter = fake_bluetooth_adapter_client_->GetDiscoveryFilter();
   EXPECT_EQ("le", *filter->transport);
   EXPECT_EQ(-60, *filter->rssi);
   EXPECT_EQ(nullptr, filter->pathloss.get());
   uuids = *filter->uuids;
   EXPECT_NE(uuids.end(), std::find(uuids.begin(), uuids.end(), "1000"));
   EXPECT_NE(uuids.end(), std::find(uuids.begin(), uuids.end(), "1001"));
   EXPECT_NE(uuids.end(), std::find(uuids.begin(), uuids.end(), "1020"));
 
   BluetoothDiscoveryFilter* df3 =
       new BluetoothDiscoveryFilter(device::BLUETOOTH_TRANSPORT_CLASSIC);
   df3->SetRSSI(-65);
   df3->AddUUID(BluetoothUUID("1020"));
   df3->AddUUID(BluetoothUUID("1003"));
   std::unique_ptr<BluetoothDiscoveryFilter> discovery_filter3(df3);
 
   adapter_->StartDiscoverySessionWithFilter(
       std::move(discovery_filter3),
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   filter = fake_bluetooth_adapter_client_->GetDiscoveryFilter();
   EXPECT_EQ("auto", *filter->transport);
   EXPECT_EQ(-65, *filter->rssi);
   EXPECT_EQ(nullptr, filter->pathloss.get());
   uuids = *filter->uuids;
   EXPECT_NE(uuids.end(), std::find(uuids.begin(), uuids.end(), "1000"));
   EXPECT_NE(uuids.end(), std::find(uuids.begin(), uuids.end(), "1001"));
   EXPECT_NE(uuids.end(), std::find(uuids.begin(), uuids.end(), "1003"));
   EXPECT_NE(uuids.end(), std::find(uuids.begin(), uuids.end(), "1020"));
 
   // start additionally classic scan
   adapter_->StartDiscoverySession(
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   filter = fake_bluetooth_adapter_client_->GetDiscoveryFilter();
   EXPECT_EQ("auto", *filter->transport);
   EXPECT_EQ(nullptr, filter->rssi.get());
   EXPECT_EQ(nullptr, filter->pathloss.get());
   EXPECT_EQ(nullptr, filter->uuids.get());
 
   // Request to stop discovery 4 times.
   for (int i = 3; i >= 0; i--) {
     discovery_sessions_[i]->Stop(
         base::Bind(&BluetoothBlueZTest::Callback, base::Unretained(this)),
         base::Bind(&BluetoothBlueZTest::ErrorCallback, base::Unretained(this)));
 
     // Every session stopping would trigger filter update
-    message_loop_.Run();
+    base::RunLoop().Run();
   }
 }
 
 TEST_F(BluetoothBlueZTest, DeviceProperties) {
   GetAdapter();
 
   BluetoothAdapter::DeviceList devices = adapter_->GetDevices();
   ASSERT_EQ(2U, devices.size());
 
   int idx = GetDeviceIndexByAddress(
@@ skipping 690 matching lines @@
       &pairing_delegate, BluetoothAdapter::PAIRING_DELEGATE_PRIORITY_HIGH);
   device->Pair(&pairing_delegate, GetCallback(),
                base::Bind(&BluetoothBlueZTest::ConnectErrorCallback,
                           base::Unretained(this)));
   EXPECT_EQ(1, pairing_delegate.call_count_);
   EXPECT_EQ(1, pairing_delegate.confirm_passkey_count_);
   EXPECT_EQ(123456U, pairing_delegate.last_passkey_);
 
   // Confirm the passkey.
   device->ConfirmPairing();
-  message_loop_.Run();
+  base::RunLoop().Run();
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
 
   // Make sure the paired property has been set to true.
   properties = fake_bluetooth_device_client_->GetProperties(dbus::ObjectPath(
       bluez::FakeBluetoothDeviceClient::kConnectedTrustedNotPairedDevicePath));
   EXPECT_TRUE(properties->paired.value());
 }
 
 TEST_F(BluetoothBlueZTest, PairAlreadyPairedDevice) {
@@ skipping 45 matching lines @@
   TestBluetoothAdapterObserver observer(adapter_);
 
   TestPairingDelegate pairing_delegate;
   device->Connect(&pairing_delegate, GetCallback(),
                   base::Bind(&BluetoothBlueZTest::ConnectErrorCallback,
                              base::Unretained(this)));
 
   EXPECT_EQ(0, pairing_delegate.call_count_);
   EXPECT_TRUE(device->IsConnecting());
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
 
   // Two changes for connecting, one change for connected, one for paired,
   // two for trusted (after pairing and connection), and one for the reconnect
   // mode (IsConnectable).
   EXPECT_EQ(7, observer.device_changed_count());
   EXPECT_EQ(device, observer.last_device());
 
@@ skipping 32 matching lines @@
   TestPairingDelegate pairing_delegate;
   device->Connect(&pairing_delegate, GetCallback(),
                   base::Bind(&BluetoothBlueZTest::ConnectErrorCallback,
                              base::Unretained(this)));
 
   EXPECT_EQ(1, pairing_delegate.call_count_);
   EXPECT_EQ(1, pairing_delegate.display_pincode_count_);
   EXPECT_EQ("123456", pairing_delegate.last_pincode_);
   EXPECT_TRUE(device->IsConnecting());
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
 
   // Two changes for connecting, one change for connected, one for paired,
   // two for trusted (after pairing and connection), and one for the reconnect
   // mode (IsConnectable).
   EXPECT_EQ(7, observer.device_changed_count());
   EXPECT_EQ(device, observer.last_device());
 
@@ skipping 39 matching lines @@
   EXPECT_EQ(2, pairing_delegate.call_count_);
   EXPECT_EQ(1, pairing_delegate.display_passkey_count_);
   EXPECT_EQ(123456U, pairing_delegate.last_passkey_);
   EXPECT_EQ(1, pairing_delegate.keys_entered_count_);
   EXPECT_EQ(0U, pairing_delegate.last_entered_);
 
   EXPECT_TRUE(device->IsConnecting());
 
   // One call to KeysEntered() for each key, including [enter].
   for (int i = 1; i <= 7; ++i) {
-    message_loop_.Run();
+    base::RunLoop().Run();
 
     EXPECT_EQ(2 + i, pairing_delegate.call_count_);
     EXPECT_EQ(1 + i, pairing_delegate.keys_entered_count_);
     EXPECT_EQ(static_cast<uint32_t>(i), pairing_delegate.last_entered_);
   }
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   // 8 KeysEntered notifications (0 to 7, inclusive) and one aditional call for
   // DisplayPasskey().
   EXPECT_EQ(9, pairing_delegate.call_count_);
   EXPECT_EQ(8, pairing_delegate.keys_entered_count_);
   EXPECT_EQ(7U, pairing_delegate.last_entered_);
 
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
 
@@ skipping 41 matching lines @@
   device->Connect(&pairing_delegate, GetCallback(),
                   base::Bind(&BluetoothBlueZTest::ConnectErrorCallback,
                              base::Unretained(this)));
 
   EXPECT_EQ(1, pairing_delegate.call_count_);
   EXPECT_EQ(1, pairing_delegate.request_pincode_count_);
   EXPECT_TRUE(device->IsConnecting());
 
   // Set the PIN.
   device->SetPinCode("1234");
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
 
   // Two changes for connecting, one change for connected, one for paired and
   // two for trusted (after pairing and connection).
   EXPECT_EQ(6, observer.device_changed_count());
   EXPECT_EQ(device, observer.last_device());
 
   EXPECT_TRUE(device->IsConnected());
@@ skipping 34 matching lines @@
                   base::Bind(&BluetoothBlueZTest::ConnectErrorCallback,
                              base::Unretained(this)));
 
   EXPECT_EQ(1, pairing_delegate.call_count_);
   EXPECT_EQ(1, pairing_delegate.confirm_passkey_count_);
   EXPECT_EQ(123456U, pairing_delegate.last_passkey_);
   EXPECT_TRUE(device->IsConnecting());
 
   // Confirm the passkey.
   device->ConfirmPairing();
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
 
   // Two changes for connecting, one change for connected, one for paired and
   // two for trusted (after pairing and connection).
   EXPECT_EQ(6, observer.device_changed_count());
   EXPECT_EQ(device, observer.last_device());
 
   EXPECT_TRUE(device->IsConnected());
@@ skipping 30 matching lines @@
   device->Connect(&pairing_delegate, GetCallback(),
                   base::Bind(&BluetoothBlueZTest::ConnectErrorCallback,
                              base::Unretained(this)));
 
   EXPECT_EQ(1, pairing_delegate.call_count_);
   EXPECT_EQ(1, pairing_delegate.request_passkey_count_);
   EXPECT_TRUE(device->IsConnecting());
 
   // Set the Passkey.
   device->SetPasskey(1234);
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
 
   // Two changes for connecting, one change for connected, one for paired and
   // two for trusted (after pairing and connection).
   EXPECT_EQ(6, observer.device_changed_count());
   EXPECT_EQ(device, observer.last_device());
 
   EXPECT_TRUE(device->IsConnected());
@@ skipping 26 matching lines @@
 
   TestBluetoothAdapterObserver observer(adapter_);
 
   TestPairingDelegate pairing_delegate;
   device->Connect(&pairing_delegate, GetCallback(),
                   base::Bind(&BluetoothBlueZTest::ConnectErrorCallback,
                              base::Unretained(this)));
 
   EXPECT_EQ(0, pairing_delegate.call_count_);
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
 
   // Two changes for connecting, one change for connected, one for paired and
   // two for trusted (after pairing and connection).
   EXPECT_EQ(6, observer.device_changed_count());
   EXPECT_EQ(device, observer.last_device());
 
   EXPECT_TRUE(device->IsConnected());
@@ skipping 26 matching lines @@
 
   TestPairingDelegate pairing_delegate;
   device->Connect(&pairing_delegate, GetCallback(),
                   base::Bind(&BluetoothBlueZTest::ConnectErrorCallback,
                              base::Unretained(this)));
 
   EXPECT_EQ(0, pairing_delegate.call_count_);
   EXPECT_TRUE(device->IsConnecting());
 
   // Run the loop to get the error..
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
 
   EXPECT_EQ(BluetoothDevice::ERROR_FAILED, last_connect_error_);
 
   EXPECT_FALSE(device->IsConnected());
   EXPECT_FALSE(device->IsConnecting());
   EXPECT_FALSE(device->IsPaired());
 }
@@ skipping 14 matching lines @@
 
   TestPairingDelegate pairing_delegate;
   device->Connect(&pairing_delegate, GetCallback(),
                   base::Bind(&BluetoothBlueZTest::ConnectErrorCallback,
                              base::Unretained(this)));
 
   EXPECT_EQ(0, pairing_delegate.call_count_);
   EXPECT_TRUE(device->IsConnecting());
 
   // Run the loop to get the error..
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
 
   EXPECT_EQ(BluetoothDevice::ERROR_AUTH_TIMEOUT, last_connect_error_);
 
   EXPECT_FALSE(device->IsConnected());
   EXPECT_FALSE(device->IsConnecting());
   EXPECT_FALSE(device->IsPaired());
 }
@@ skipping 14 matching lines @@
   TestBluetoothAdapterObserver observer(adapter_);
 
   TestPairingDelegate pairing_delegate;
   device->Connect(&pairing_delegate, GetCallback(),
                   base::Bind(&BluetoothBlueZTest::ConnectErrorCallback,
                              base::Unretained(this)));
 
   EXPECT_EQ(0, pairing_delegate.call_count_);
   EXPECT_TRUE(device->IsConnecting());
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(BluetoothDevice::ERROR_FAILED, last_connect_error_);
 
   // Two changes for connecting, one for paired and one for trusted after
   // pairing. The device should not be connected.
   EXPECT_EQ(4, observer.device_changed_count());
   EXPECT_EQ(device, observer.last_device());
 
@@ skipping 28 matching lines @@
   device->Connect(&pairing_delegate, GetCallback(),
                   base::Bind(&BluetoothBlueZTest::ConnectErrorCallback,
                              base::Unretained(this)));
 
   EXPECT_EQ(1, pairing_delegate.call_count_);
   EXPECT_EQ(1, pairing_delegate.request_pincode_count_);
   EXPECT_TRUE(device->IsConnecting());
 
   // Reject the pairing.
   device->RejectPairing();
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(BluetoothDevice::ERROR_AUTH_REJECTED, last_connect_error_);
 
   // Should be no changes except connecting going true and false.
   EXPECT_EQ(2, observer.device_changed_count());
   EXPECT_FALSE(device->IsConnected());
   EXPECT_FALSE(device->IsConnecting());
   EXPECT_FALSE(device->IsPaired());
@@ skipping 17 matching lines @@
   device->Connect(&pairing_delegate, GetCallback(),
                   base::Bind(&BluetoothBlueZTest::ConnectErrorCallback,
                              base::Unretained(this)));
 
   EXPECT_EQ(1, pairing_delegate.call_count_);
   EXPECT_EQ(1, pairing_delegate.request_pincode_count_);
   EXPECT_TRUE(device->IsConnecting());
 
   // Cancel the pairing.
   device->CancelPairing();
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(BluetoothDevice::ERROR_AUTH_CANCELED, last_connect_error_);
 
   // Should be no changes except connecting going true and false.
   EXPECT_EQ(2, observer.device_changed_count());
   EXPECT_FALSE(device->IsConnected());
   EXPECT_FALSE(device->IsConnecting());
   EXPECT_FALSE(device->IsPaired());
@@ skipping 17 matching lines @@
   device->Connect(&pairing_delegate, GetCallback(),
                   base::Bind(&BluetoothBlueZTest::ConnectErrorCallback,
                              base::Unretained(this)));
 
   EXPECT_EQ(1, pairing_delegate.call_count_);
   EXPECT_EQ(1, pairing_delegate.request_passkey_count_);
   EXPECT_TRUE(device->IsConnecting());
 
   // Reject the pairing.
   device->RejectPairing();
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(BluetoothDevice::ERROR_AUTH_REJECTED, last_connect_error_);
 
   // Should be no changes except connecting going true and false.
   EXPECT_EQ(2, observer.device_changed_count());
   EXPECT_FALSE(device->IsConnected());
   EXPECT_FALSE(device->IsConnecting());
   EXPECT_FALSE(device->IsPaired());
@@ skipping 17 matching lines @@
   device->Connect(&pairing_delegate, GetCallback(),
                   base::Bind(&BluetoothBlueZTest::ConnectErrorCallback,
                              base::Unretained(this)));
 
   EXPECT_EQ(1, pairing_delegate.call_count_);
   EXPECT_EQ(1, pairing_delegate.request_passkey_count_);
   EXPECT_TRUE(device->IsConnecting());
 
   // Cancel the pairing.
   device->CancelPairing();
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(BluetoothDevice::ERROR_AUTH_CANCELED, last_connect_error_);
 
   // Should be no changes except connecting going true and false.
   EXPECT_EQ(2, observer.device_changed_count());
   EXPECT_FALSE(device->IsConnected());
   EXPECT_FALSE(device->IsConnecting());
   EXPECT_FALSE(device->IsPaired());
@@ skipping 17 matching lines @@
   device->Connect(&pairing_delegate, GetCallback(),
                   base::Bind(&BluetoothBlueZTest::ConnectErrorCallback,
                              base::Unretained(this)));
 
   EXPECT_EQ(1, pairing_delegate.call_count_);
   EXPECT_EQ(1, pairing_delegate.confirm_passkey_count_);
   EXPECT_TRUE(device->IsConnecting());
 
   // Reject the pairing.
   device->RejectPairing();
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(BluetoothDevice::ERROR_AUTH_REJECTED, last_connect_error_);
 
   // Should be no changes except connecting going true and false.
   EXPECT_EQ(2, observer.device_changed_count());
   EXPECT_FALSE(device->IsConnected());
   EXPECT_FALSE(device->IsConnecting());
   EXPECT_FALSE(device->IsPaired());
@@ skipping 17 matching lines @@
   device->Connect(&pairing_delegate, GetCallback(),
                   base::Bind(&BluetoothBlueZTest::ConnectErrorCallback,
                              base::Unretained(this)));
 
   EXPECT_EQ(1, pairing_delegate.call_count_);
   EXPECT_EQ(1, pairing_delegate.confirm_passkey_count_);
   EXPECT_TRUE(device->IsConnecting());
 
   // Cancel the pairing.
   device->CancelPairing();
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(BluetoothDevice::ERROR_AUTH_CANCELED, last_connect_error_);
 
   // Should be no changes except connecting going true and false.
   EXPECT_EQ(2, observer.device_changed_count());
   EXPECT_FALSE(device->IsConnected());
   EXPECT_FALSE(device->IsConnecting());
   EXPECT_FALSE(device->IsPaired());
@@ skipping 16 matching lines @@
   TestPairingDelegate pairing_delegate;
   device->Connect(&pairing_delegate, GetCallback(),
                   base::Bind(&BluetoothBlueZTest::ConnectErrorCallback,
                              base::Unretained(this)));
 
   EXPECT_EQ(0, pairing_delegate.call_count_);
   EXPECT_TRUE(device->IsConnecting());
 
   // Cancel the pairing.
   device->CancelPairing();
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(BluetoothDevice::ERROR_AUTH_CANCELED, last_connect_error_);
 
   // Should be no changes except connecting going true and false.
   EXPECT_EQ(2, observer.device_changed_count());
   EXPECT_FALSE(device->IsConnected());
   EXPECT_FALSE(device->IsConnecting());
   EXPECT_FALSE(device->IsPaired());
@@ skipping 22 matching lines @@
   fake_bluetooth_device_client_->SimulatePairing(
       dbus::ObjectPath(bluez::FakeBluetoothDeviceClient::kRequestPinCodePath),
       true, GetCallback(), base::Bind(&BluetoothBlueZTest::DBusErrorCallback,
                                       base::Unretained(this)));
 
   EXPECT_EQ(1, pairing_delegate.call_count_);
   EXPECT_EQ(1, pairing_delegate.request_pincode_count_);
 
   // Set the PIN.
   device->SetPinCode("1234");
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
 
   // One change for paired, and one for trusted.
   EXPECT_EQ(2, observer.device_changed_count());
   EXPECT_EQ(device, observer.last_device());
 
   EXPECT_TRUE(device->IsPaired());
 
@@ skipping 33 matching lines @@
       dbus::ObjectPath(bluez::FakeBluetoothDeviceClient::kConfirmPasskeyPath),
       true, GetCallback(), base::Bind(&BluetoothBlueZTest::DBusErrorCallback,
                                       base::Unretained(this)));
 
   EXPECT_EQ(1, pairing_delegate.call_count_);
   EXPECT_EQ(1, pairing_delegate.confirm_passkey_count_);
   EXPECT_EQ(123456U, pairing_delegate.last_passkey_);
 
   // Confirm the passkey.
   device->ConfirmPairing();
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
 
   // One change for paired, and one for trusted.
   EXPECT_EQ(2, observer.device_changed_count());
   EXPECT_EQ(device, observer.last_device());
 
   EXPECT_TRUE(device->IsPaired());
 
@@ skipping 32 matching lines @@
   fake_bluetooth_device_client_->SimulatePairing(
       dbus::ObjectPath(bluez::FakeBluetoothDeviceClient::kRequestPasskeyPath),
       true, GetCallback(), base::Bind(&BluetoothBlueZTest::DBusErrorCallback,
                                       base::Unretained(this)));
 
   EXPECT_EQ(1, pairing_delegate.call_count_);
   EXPECT_EQ(1, pairing_delegate.request_passkey_count_);
 
   // Set the Passkey.
   device->SetPasskey(1234);
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
 
   // One change for paired, and one for trusted.
   EXPECT_EQ(2, observer.device_changed_count());
   EXPECT_EQ(device, observer.last_device());
 
   EXPECT_TRUE(device->IsPaired());
 
@@ skipping 33 matching lines @@
   fake_bluetooth_device_client_->SimulatePairing(
       dbus::ObjectPath(bluez::FakeBluetoothDeviceClient::kJustWorksPath), true,
       GetCallback(), base::Bind(&BluetoothBlueZTest::DBusErrorCallback,
                                 base::Unretained(this)));
 
   EXPECT_EQ(1, pairing_delegate.call_count_);
   EXPECT_EQ(1, pairing_delegate.authorize_pairing_count_);
 
   // Confirm the pairing.
   device->ConfirmPairing();
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(1, callback_count_);
   EXPECT_EQ(0, error_callback_count_);
 
   // One change for paired, and one for trusted.
   EXPECT_EQ(2, observer.device_changed_count());
   EXPECT_EQ(device, observer.last_device());
 
   EXPECT_TRUE(device->IsPaired());
 
@@ skipping 24 matching lines @@
   ASSERT_TRUE(device != nullptr);
   ASSERT_FALSE(device->IsPaired());
 
   TestBluetoothAdapterObserver observer(adapter_);
 
   fake_bluetooth_device_client_->SimulatePairing(
       dbus::ObjectPath(bluez::FakeBluetoothDeviceClient::kRequestPinCodePath),
       true, GetCallback(), base::Bind(&BluetoothBlueZTest::DBusErrorCallback,
                                       base::Unretained(this)));
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(bluetooth_device::kErrorAuthenticationRejected, last_client_error_);
 
   // No changes should be observer.
   EXPECT_EQ(0, observer.device_changed_count());
 
   EXPECT_FALSE(device->IsPaired());
 
@@ skipping 18 matching lines @@
   ASSERT_TRUE(device != nullptr);
   ASSERT_FALSE(device->IsPaired());
 
   TestBluetoothAdapterObserver observer(adapter_);
 
   fake_bluetooth_device_client_->SimulatePairing(
       dbus::ObjectPath(bluez::FakeBluetoothDeviceClient::kConfirmPasskeyPath),
       true, GetCallback(), base::Bind(&BluetoothBlueZTest::DBusErrorCallback,
                                       base::Unretained(this)));
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(bluetooth_device::kErrorAuthenticationRejected, last_client_error_);
 
   // No changes should be observer.
   EXPECT_EQ(0, observer.device_changed_count());
 
   EXPECT_FALSE(device->IsPaired());
 
@@ skipping 18 matching lines @@
   ASSERT_TRUE(device != nullptr);
   ASSERT_FALSE(device->IsPaired());
 
   TestBluetoothAdapterObserver observer(adapter_);
 
   fake_bluetooth_device_client_->SimulatePairing(
       dbus::ObjectPath(bluez::FakeBluetoothDeviceClient::kRequestPasskeyPath),
       true, GetCallback(), base::Bind(&BluetoothBlueZTest::DBusErrorCallback,
                                       base::Unretained(this)));
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(bluetooth_device::kErrorAuthenticationRejected, last_client_error_);
 
   // No changes should be observer.
   EXPECT_EQ(0, observer.device_changed_count());
 
   EXPECT_FALSE(device->IsPaired());
 
@@ skipping 18 matching lines @@
   ASSERT_TRUE(device != nullptr);
   ASSERT_FALSE(device->IsPaired());
 
   TestBluetoothAdapterObserver observer(adapter_);
 
   fake_bluetooth_device_client_->SimulatePairing(
       dbus::ObjectPath(bluez::FakeBluetoothDeviceClient::kJustWorksPath), true,
       GetCallback(), base::Bind(&BluetoothBlueZTest::DBusErrorCallback,
                                 base::Unretained(this)));
 
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(1, error_callback_count_);
   EXPECT_EQ(bluetooth_device::kErrorAuthenticationRejected, last_client_error_);
 
   // No changes should be observer.
   EXPECT_EQ(0, observer.device_changed_count());
 
   EXPECT_FALSE(device->IsPaired());
 
@@ skipping 162 matching lines @@
 // Verifies Shutdown shuts down the adapter as expected.
 TEST_F(BluetoothBlueZTest, Shutdown) {
   // Set up adapter. Set powered & discoverable, start discovery.
   GetAdapter();
   adapter_->SetPowered(true, GetCallback(), GetErrorCallback());
   adapter_->SetDiscoverable(true, GetCallback(), GetErrorCallback());
   adapter_->StartDiscoverySession(
       base::Bind(&BluetoothBlueZTest::DiscoverySessionCallback,
                  base::Unretained(this)),
       GetErrorCallback());
-  base::MessageLoop::current()->Run();
+  base::RunLoop().Run();
   ASSERT_EQ(3, callback_count_);
   ASSERT_EQ(0, error_callback_count_);
   callback_count_ = 0;
 
   TestPairingDelegate pairing_delegate;
   adapter_->AddPairingDelegate(
       &pairing_delegate, BluetoothAdapter::PAIRING_DELEGATE_PRIORITY_HIGH);
 
   // Validate running adapter state.
   EXPECT_NE("", adapter_->GetAddress());
@@ skipping 295 matching lines @@
   adapter_->Shutdown();
   adapter_bluez->OnStopDiscoveryError(GetDiscoveryErrorCallback(), "", "");
 
   // 1 error reported to RemoveDiscoverySession because of OnStopDiscoveryError,
   // and kNumberOfDiscoverySessions errors queued with AddDiscoverySession.
   EXPECT_EQ(0, callback_count_);
   EXPECT_EQ(1 + kNumberOfDiscoverySessions, error_callback_count_);
 }
 
 }  // namespace bluez