Make Interaction Media Features MQ dynamic on Windows.

content/public/browser/render_view_host.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_PUBLIC_BROWSER_RENDER_VIEW_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_RENDER_VIEW_HOST_H_
 
 #include "base/callback_forward.h"
 #include "base/files/file_path.h"
 #include "build/build_config.h"
@@ skipping 130 matching lines @@
   // this lookup will be fast
   virtual WebPreferences GetWebkitPreferences() = 0;
 
   // If any state that affects the webkit preferences changed, this method must
   // be called. This triggers recomputing preferences.
   virtual void OnWebkitPreferencesChanged() = 0;
 
   // Passes a list of Webkit preferences to the renderer.
   virtual void UpdateWebkitPreferences(const WebPreferences& prefs) = 0;
 
+  // Returns true if current input device features are different from the values
+  // stored in WebKit preferences.
+  virtual bool InputDeviceFeaturesChanged() = 0;
+
   // Notify the render view host to select the word around the caret.
   virtual void SelectWordAroundCaret() = 0;
 
  private:
   // This interface should only be implemented inside content.
   friend class RenderViewHostImpl;
   RenderViewHost() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_RENDER_VIEW_HOST_H_