Fix classes that have too many virtuals for inline constructors.

content/browser/renderer_host/render_view_host_delegate_view.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_VIEW_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_VIEW_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 81 matching lines @@
       const SkBitmap& zoomed_bitmap,
       const base::Callback<void(ui::GestureEvent*)>& gesture_cb,
       const base::Callback<void(ui::MouseEvent*)>& mouse_cb) {}
 
   // Hides the Link Disambiguation Popup, if it was showing, otherwise does
   // nothing.
   virtual void HideDisambiguationPopup() {}
 #endif
 
  protected:
+  RenderViewHostDelegateView() = default;
   virtual ~RenderViewHostDelegateView() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_VIEW_H_