BrowserPlugin Cleanup: Simplify update device scale factor

content/renderer/browser_plugin/browser_plugin_manager.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_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_MANAGER_H_
 #define CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_MANAGER_H_
 
 #include "base/id_map.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 43 matching lines @@
       blink::WebFrame* frame,
       bool auto_navigate) = 0;
 
   void Attach(int browser_plugin_instance_id);
 
   void AddBrowserPlugin(int browser_plugin_instance_id,
                         BrowserPlugin* browser_plugin);
   void RemoveBrowserPlugin(int browser_plugin_instance_id);
   BrowserPlugin* GetBrowserPlugin(int browser_plugin_instance_id) const;
 
-  void UpdateDeviceScaleFactor(float device_scale_factor);
+  void UpdateDeviceScaleFactor();
   void UpdateFocusState();
   RenderViewImpl* render_view() const { return render_view_.get(); }
   int GetNextInstanceID();
 
   // RenderViewObserver implementation.
 
   // BrowserPluginManager must override the default Send behavior.
   virtual bool Send(IPC::Message* msg) OVERRIDE = 0;
 
   // Don't destroy the BrowserPluginManager when the RenderViewImpl goes away.
@@ skipping 14 matching lines @@
   IDMap<BrowserPlugin> instances_;
   int current_instance_id_;
   base::WeakPtr<RenderViewImpl> render_view_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserPluginManager);
 };
 
 }  // namespace content
 
 #endif //  CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_MANAGER_H_