Replace the struct workaround for forward-declaring ChromeViewHostMsg_GetPluginInfo_Status with a p…

chrome/renderer/plugins/chrome_plugin_placeholder.h

 // Copyright 2013 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 CHROME_RENDERER_PLUGINS_CHROME_PLUGIN_PLACEHOLDER_H_
 #define CHROME_RENDERER_PLUGINS_CHROME_PLUGIN_PLACEHOLDER_H_
 
 #include "components/plugins/renderer/loadable_plugin_placeholder.h"
 #include "content/public/renderer/context_menu_client.h"
 #include "content/public/renderer/render_process_observer.h"
 
 namespace gfx {
 class Size;
 }
 
-struct ChromeViewHostMsg_GetPluginInfo_Status;
+enum class ChromeViewHostMsg_GetPluginInfo_Status;
 
 // This contains information specifying the poster image of plugin placeholders.
 // The default constructor specifies no poster image.
 struct PlaceholderPosterInfo {
   // The poster image specified in image 'srcset' attribute format.
   std::string poster_attribute;
 
   // Used to resolve relative paths in |poster_attribute|.
   GURL base_url;
 
@@ skipping 21 matching lines @@
   // Creates a new WebViewPlugin with a MissingPlugin as a delegate.
   static ChromePluginPlaceholder* CreateMissingPlugin(
       content::RenderFrame* render_frame,
       blink::WebLocalFrame* frame,
       const blink::WebPluginParams& params);
 
   static ChromePluginPlaceholder* CreateErrorPlugin(
       content::RenderFrame* render_frame,
       const base::FilePath& plugin_path);
 
-  void SetStatus(const ChromeViewHostMsg_GetPluginInfo_Status& status);
+  void SetStatus(ChromeViewHostMsg_GetPluginInfo_Status status);
 
 #if defined(ENABLE_PLUGIN_INSTALLATION)
   int32 CreateRoutingId();
 #endif
 
  private:
   ChromePluginPlaceholder(content::RenderFrame* render_frame,
                           blink::WebLocalFrame* frame,
                           const blink::WebPluginParams& params,
                           const std::string& html_data,
@@ skipping 25 matching lines @@
 
 #if defined(ENABLE_PLUGIN_INSTALLATION)
   void OnDidNotFindMissingPlugin();
   void OnFoundMissingPlugin(const base::string16& plugin_name);
   void OnStartedDownloadingPlugin();
   void OnFinishedDownloadingPlugin();
   void OnErrorDownloadingPlugin(const std::string& error);
   void OnCancelledDownloadingPlugin();
 #endif
 
-  // We use a scoped_ptr so we can forward-declare the struct; it's defined in
-  // an IPC message file which can't be easily included in other header files.
-  scoped_ptr<ChromeViewHostMsg_GetPluginInfo_Status> status_;
+  ChromeViewHostMsg_GetPluginInfo_Status status_;
 
   base::string16 title_;
 
 #if defined(ENABLE_PLUGIN_INSTALLATION)
   // |routing_id()| is the routing ID of our associated RenderView, but we have
   // a separate routing ID for messages specific to this placeholder.
   int32 placeholder_routing_id_;
 #endif
 
   bool has_host_;
   int context_menu_request_id_;  // Nonzero when request pending.
   base::string16 plugin_name_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromePluginPlaceholder);
 };
 
 #endif  // CHROME_RENDERER_PLUGINS_CHROME_PLUGIN_PLACEHOLDER_H_