arc: Rename methods in ArcSessionManager::Observer.

chrome/browser/chromeos/arc/arc_session_manager_browsertest.cc

 // Copyright 2016 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 <memory>
 #include <string>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
@@ skipping 66 matching lines @@
     ArcSessionManager::Get()->RemoveObserver(this);
   }
 
   void Wait() {
     run_loop_.reset(new base::RunLoop);
     run_loop_->Run();
     run_loop_.reset();
   }
 
   // ArcSessionManager::Observer:
-  void OnShutdownBridge() override {
+  void OnArcBridgeShutdown() override {
     if (!run_loop_)
       return;
     run_loop_->Quit();
   }
 
  private:
   std::unique_ptr<base::RunLoop> run_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(ArcSessionManagerShutdownObserver);
 };
@@ skipping 165 matching lines @@
                                                    base::Time::Max());
   ArcSessionManagerShutdownObserver().Wait();
   ASSERT_EQ(ArcSessionManager::State::REMOVING_DATA_DIR,
             ArcSessionManager::Get()->state());
   ArcSessionManagerDataRemovedObserver().Wait();
   ASSERT_EQ(ArcSessionManager::State::STOPPED,
             ArcSessionManager::Get()->state());
 }
 
 }  // namespace arc