Remove trailing semicolon at the end of a method definition

ash/display/window_tree_host_manager_unittest.cc

Index: ash/display/window_tree_host_manager_unittest.cc
diff --git a/ash/display/window_tree_host_manager_unittest.cc b/ash/display/window_tree_host_manager_unittest.cc
index fc4db30d57922beac3cf1f0fbf4c8d1326f6b8c1..46f47fab8cd1b5aca4ef44de7005e1cfde96c6b3 100644
--- a/ash/display/window_tree_host_manager_unittest.cc
+++ b/ash/display/window_tree_host_manager_unittest.cc
@@ -390,8 +390,8 @@ class TestMouseWatcherListener : public views::MouseWatcherListener {
 
 class WindowTreeHostManagerTest : public test::AshTestBase, public TestHelper {
  public:
-  WindowTreeHostManagerTest() : TestHelper(this){};
-  ~WindowTreeHostManagerTest() override{};
+  WindowTreeHostManagerTest() : TestHelper(this) {}
+  ~WindowTreeHostManagerTest() override {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WindowTreeHostManagerTest);