Const correctness for some immutable members in BrowserPlugin.

content/renderer/browser_plugin/browser_plugin.h

 // Copyright 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_H_
 #define  CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_
 
 #include "third_party/WebKit/public/web/WebPlugin.h"
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 267 matching lines @@
   void OnUpdatedName(int instance_id, const std::string& name);
   void OnUpdateRect(int instance_id,
                     const BrowserPluginMsg_UpdateRect_Params& params);
 
   // This is the browser-process-allocated instance ID that uniquely identifies
   // a guest WebContents.
   int guest_instance_id_;
   // This indicates whether this BrowserPlugin has been attached to a
   // WebContents.
   bool attached_;
-  base::WeakPtr<RenderViewImpl> render_view_;
+  const base::WeakPtr<RenderViewImpl> render_view_;
   // We cache the |render_view_|'s routing ID because we need it on destruction.
   // If the |render_view_| is destroyed before the BrowserPlugin is destroyed
   // then we will attempt to access a NULL pointer.
-  int render_view_routing_id_;
+  const int render_view_routing_id_;
   blink::WebPluginContainer* container_;
   scoped_ptr<BrowserPluginBindings> bindings_;
   bool paint_ack_received_;
   gfx::Rect plugin_rect_;
   float last_device_scale_factor_;
   // Bitmap for crashed plugin. Lazily initialized, non-owning pointer.
   SkBitmap* sad_guest_;
   bool guest_crashed_;
   scoped_ptr<BrowserPluginHostMsg_ResizeGuest_Params> pending_resize_params_;
   bool is_auto_size_state_dirty_;
   // Maximum size constraint for autosize.
   gfx::Size max_auto_size_;
   std::string storage_partition_id_;
   bool persist_storage_;
   bool valid_partition_id_;
   int content_window_routing_id_;
   bool plugin_focused_;
   // Tracks the visibility of the browser plugin regardless of the whole
   // embedder RenderView's visibility.
   bool visible_;
 
-  bool auto_navigate_;
+  const bool auto_navigate_;
   std::string html_string_;
 
   WebCursor cursor_;
 
   gfx::Size last_view_size_;
   bool before_first_navigation_;
   bool mouse_locked_;
 
   // BrowserPlugin outlives RenderViewImpl in Chrome Apps and so we need to
   // store the BrowserPlugin's BrowserPluginManager in a member variable to
   // avoid accessing the RenderViewImpl.
-  scoped_refptr<BrowserPluginManager> browser_plugin_manager_;
+  const scoped_refptr<BrowserPluginManager> browser_plugin_manager_;
 
   // Used for HW compositing.
   scoped_refptr<ChildFrameCompositingHelper> compositing_helper_;
 
   // Used to identify the plugin to WebBindings.
   scoped_ptr<struct _NPP> npp_;
 
   // URL for the embedder frame.
-  GURL embedder_frame_url_;
+  const GURL embedder_frame_url_;
 
   std::vector<EditCommand> edit_commands_;
 
   // Weak factory used in v8 |MakeWeak| callback, since the v8 callback might
   // get called after BrowserPlugin has been destroyed.
   base::WeakPtrFactory<BrowserPlugin> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserPlugin);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_