Chrome style plugin: apply fixits in //third_party/blink/renderer/controller

Bug: 706466
Change-Id: Ibfca7f6baf3fcb475dd3bb78f3453624ef79c83c
Reviewed-on: https://chromium-review.googlesource.com/1027118Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Daniel Cheng <dcheng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#553458}

third_party/blink/renderer/controller/dev_tools_frontend_impl.h

@@ -63,7 +63,7 @@ class DevToolsFrontendImpl final
 
   ~DevToolsFrontendImpl() override;
   void DidClearWindowObject();
-  void Trace(blink::Visitor*);
+  void Trace(blink::Visitor*) override;
 
  private:
   DevToolsFrontendImpl(LocalFrame&,

third_party/blink/renderer/controller/oom_intervention_impl_test.cc

@@ -23,7 +23,7 @@ class MockOomInterventionHost : public mojom::blink::OomInterventionHost {
  public:
   MockOomInterventionHost(mojom::blink::OomInterventionHostRequest request)
       : binding_(this, std::move(request)) {}
-  ~MockOomInterventionHost() = default;
+  ~MockOomInterventionHost() override = default;
 
   void OnHighMemoryUsage(bool intervention_triggered) override {}