Apply automated fixits for Chrome clang plugin to ui.

Working on trimming down plugin warnings on the Windows clang build.

BUG=467287

Review URL: https://codereview.chromium.org/1112693003

Cr-Commit-Position: refs/heads/master@{#327549}

ui/accessibility/platform/ax_platform_node_win_unittest.cc

@@ -34,7 +34,7 @@ ScopedVariant SELF(CHILDID_SELF);
 class AXPlatformNodeWinTest : public testing::Test {
  public:
   AXPlatformNodeWinTest() {}
-  virtual ~AXPlatformNodeWinTest() {}
+  ~AXPlatformNodeWinTest() override {}
 
   void SetUp() override {
     win::CreateATLModuleIfNeeded();