Show a replacement plug-in for loading errors.

content/public/renderer/content_renderer_client.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_RENDERER_CONTENT_RENDERER_CLIENT_H_
 #define CONTENT_PUBLIC_RENDERER_CONTENT_RENDERER_CLIENT_H_
 #pragma once
 
 #include <string>
 
 #include "base/string16.h"
 #include "base/memory/weak_ptr.h"
 #include "ipc/ipc_message.h"
 #include "content/public/common/content_client.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPageVisibilityState.h"
 
+class FilePath;
 class GURL;
 class SkBitmap;
 
 namespace WebKit {
 class WebAudioSourceProvider;
 class WebFrame;
 class WebMediaPlayerClient;
 class WebPlugin;
 class WebURLRequest;
 struct WebPluginParams;
 struct WebURLError;
 }
 
 namespace webkit {
 namespace ppapi {
 class PpapiInterfaceFactoryManager;
 }
+struct WebPluginInfo;
 }
 
 namespace media {
 class FilterCollection;
 class MediaLog;
 class MessageLoopFactory;
 }
 
 namespace webkit_media {
 class MediaStreamClient;
@@ skipping 32 matching lines @@
 
   // Allows the embedder to override creating a plugin. If it returns true, then
   // |plugin| will contain the created plugin, although it could be NULL. If it
   // returns false, the content layer will create the plugin.
   virtual bool OverrideCreatePlugin(
       RenderView* render_view,
       WebKit::WebFrame* frame,
       const WebKit::WebPluginParams& params,
       WebKit::WebPlugin** plugin) = 0;
 
+  // Creates a replacement plug-in that is shown when the plug-in at |file_path|
+  // couldn't be loaded. This allows the embedder to show a custom placeholder.
+  virtual WebKit::WebPlugin* CreatePluginReplacement(
+      RenderView* render_view,
+      const FilePath& plugin_path) = 0;
+
   // Returns true if the embedder has an error page to show for the given http
   // status code. If so |error_domain| should be set to according to WebURLError
   // and the embedder's GetNavigationErrorHtml will be called afterwards to get
   // the error html.
   virtual bool HasErrorPage(int http_status_code,
                             std::string* error_domain) = 0;
 
   // Returns the information to display when a navigation error occurs.
   // If |error_html| is not null then it may be set to a HTML page containing
   // the details of the error and maybe links to more info.
@@ skipping 76 matching lines @@
                                       const GURL& first_party_for_cookies,
                                       const std::string& value) = 0;
 
   virtual void RegisterPPAPIInterfaceFactories(
     webkit::ppapi::PpapiInterfaceFactoryManager* factory_manager) = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_RENDERER_CONTENT_RENDERER_CLIENT_H_