Remove trailing semicolon at the end of a method definition

ash/display/display_manager_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 "ui/display/manager/display_manager.h"
 
 #include "ash/accelerators/accelerator_commands_aura.h"
 #include "ash/ash_switches.h"
 #include "ash/display/display_configuration_controller.h"
 #include "ash/display/display_util.h"
@@ skipping 2942 matching lines @@
   scoped_refptr<chromeos::AccelerometerUpdate> portrait_secondary =
       new chromeos::AccelerometerUpdate();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DisplayManagerOrientationTest);
 };
 
 class TestObserver : public ScreenOrientationController::Observer {
  public:
   TestObserver() {}
-  ~TestObserver() override{};
+  ~TestObserver() override {}
 
   void OnUserRotationLockChanged() override { count_++; }
 
   int countAndReset() {
     int tmp = count_;
     count_ = 0;
     return tmp;
   }
 
  private:
@@ skipping 233 matching lines @@
             test_api.GetCurrentOrientation());
 
   // The orientation has alraedy been locked to secondary once, so
   // it should swtich back to the portrait secondary.
   wm::ActivateWindow(window_ps);
   EXPECT_EQ(blink::kWebScreenOrientationLockPortraitSecondary,
             test_api.GetCurrentOrientation());
 }
 
 }  // namespace ash