Fix non-virtual destructor in DelegatedFrameHostClient

content/browser/renderer_host/delegated_frame_host_client_aura.h

 // Copyright 2016 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_DELEGATED_FRAME_HOST_CLIENT_AURA_H_
 #define CONTENT_BROWSER_RENDERER_HOST_DELEGATED_FRAME_HOST_CLIENT_AURA_H_
 
 #include "base/macros.h"
 #include "content/browser/renderer_host/delegated_frame_host.h"
 #include "content/common/content_export.h"
 
 namespace content {
 
 class RenderWidgetHostViewAura;
 
 // DelegatedFrameHostClient implementation for aura, not used in mus.
 class CONTENT_EXPORT DelegatedFrameHostClientAura
     : public DelegatedFrameHostClient {
  public:
   explicit DelegatedFrameHostClientAura(
       RenderWidgetHostViewAura* render_widget_host_view);
-  virtual ~DelegatedFrameHostClientAura();
+  ~DelegatedFrameHostClientAura() override;
 
  protected:
   RenderWidgetHostViewAura* render_widget_host_view() {
     return render_widget_host_view_;
   }
 
   // DelegatedFrameHostClient implementation.
   ui::Layer* DelegatedFrameHostGetLayer() const override;
   bool DelegatedFrameHostIsVisible() const override;
   SkColor DelegatedFrameHostGetGutterColor(SkColor color) const override;
@@ skipping 11 matching lines @@
 
  private:
   RenderWidgetHostViewAura* render_widget_host_view_;
 
   DISALLOW_COPY_AND_ASSIGN(DelegatedFrameHostClientAura);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_DELEGATED_FRAME_HOST_CLIENT_AURA_H_