Enable shadow DOM-based "missing plugin" placeholder.

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_
 
 #include <string>
 #include <vector>
 
@@ skipping 19 matching lines @@
 class WebAudioDevice;
 class WebClipboard;
 class WebFrame;
 class WebLocalFrame;
 class WebMIDIAccessor;
 class WebMIDIAccessorClient;
 class WebMediaStreamCenter;
 class WebMediaStreamCenterClient;
 class WebPlugin;
 class WebPluginContainer;
+class WebPluginPlaceholder;
 class WebPrescientNetworking;
 class WebRTCPeerConnectionHandler;
 class WebRTCPeerConnectionHandlerClient;
 class WebSpeechSynthesizer;
 class WebSpeechSynthesizerClient;
 class WebThemeEngine;
 class WebURLRequest;
 class WebWorkerPermissionClientProxy;
 struct WebPluginParams;
 struct WebURLError;
@@ skipping 30 matching lines @@
   // Sets a number of views/tabs opened in this process.
   virtual void SetNumberOfViews(int number_of_views) {}
 
   // Returns the bitmap to show when a plugin crashed, or NULL for none.
   virtual SkBitmap* GetSadPluginBitmap();
 
   // Returns the bitmap to show when a <webview> guest has crashed, or NULL for
   // none.
   virtual SkBitmap* GetSadWebViewBitmap();
 
+  // Allows the embedder to create a plugin placeholder instead of a plugin.
+  // Called before OverrideCreatePlugin. May return null to decline to provide
+  // a plugin placeholder.
+  virtual blink::WebPluginPlaceholder* OverrideCreatePluginPlaceholder(
+      RenderFrame* render_frame,
+      blink::WebLocalFrame* frame,
+      const blink::WebPluginParams& params);
+
   // 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(
       RenderFrame* render_frame,
       blink::WebLocalFrame* frame,
       const blink::WebPluginParams& params,
       blink::WebPlugin** plugin);
 
   // Creates a replacement plug-in that is shown when the plug-in at |file_path|
@@ skipping 175 matching lines @@
   virtual bool IsPluginAllowedToUseDevChannelAPIs();
 
   // Returns a user agent override specific for |url|, or empty string if
   // default user agent should be used.
   virtual std::string GetUserAgentOverrideForURL(const GURL& url);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_RENDERER_CONTENT_RENDERER_CLIENT_H_