Remove trailing semicolon at the end of a method definition

ash/display/window_tree_host_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 "ash/display/window_tree_host_manager.h"
 
 #include <memory>
 
 #include "ash/display/display_util.h"
 #include "ash/screen_util.h"
@@ skipping 372 matching lines @@
   // views::MouseWatcherListener:
   void MouseMovedOutOfHost() override {}
 
   DISALLOW_COPY_AND_ASSIGN(TestMouseWatcherListener);
 };
 
 }  // namespace
 
 class WindowTreeHostManagerTest : public test::AshTestBase, public TestHelper {
  public:
-  WindowTreeHostManagerTest() : TestHelper(this){};
-  ~WindowTreeHostManagerTest() override{};
+  WindowTreeHostManagerTest() : TestHelper(this) {}
+  ~WindowTreeHostManagerTest() override {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WindowTreeHostManagerTest);
 };
 
 TEST_F(WindowTreeHostManagerShutdownTest, Shutdown) {
   UpdateDisplay("444x333, 200x200");
 }
 
 TEST_F(WindowTreeHostManagerStartupTest, Startup) {
@@ skipping 1291 matching lines @@
       widget->GetNativeWindow()->GetRootWindow());
   event_generator.MoveMouseToCenterOf(widget->GetNativeWindow());
 
   UpdateDisplay("300x300");
   watcher.Stop();
 
   widget->CloseNow();
 }
 
 }  // namespace ash