chrome/blink: Add functionality for in-product help for media elements.

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 <stddef.h>
 
 #include <map>
@@ skipping 23 matching lines @@
 }
 
 namespace blink {
 class WebAudioDevice;
 class WebAudioLatencyHint;
 class WebClipboard;
 class WebFrame;
 class WebLocalFrame;
 class WebMIDIAccessor;
 class WebMIDIAccessorClient;
+class WebMediaIPH;
 class WebMediaStreamCenter;
 class WebMediaStreamCenterClient;
 class WebPlugin;
 class WebPrescientNetworking;
 class WebRTCPeerConnectionHandler;
 class WebRTCPeerConnectionHandlerClient;
 class WebSpeechSynthesizer;
 class WebSpeechSynthesizerClient;
 class WebThemeEngine;
 class WebURL;
@@ skipping 309 matching lines @@
   // An empty URL is returned if the URL is not overriden.
   virtual GURL OverrideFlashEmbedWithHTML(const GURL& url);
 
   // Provides parameters for initializing the global task scheduler. Default
   // params are used if this returns nullptr.
   virtual std::unique_ptr<base::TaskScheduler::InitParams>
   GetTaskSchedulerInitParams();
 
   // Returns true if the media pipeline can be suspended, or false otherwise.
   virtual bool AllowMediaSuspend();
+
+  virtual std::unique_ptr<blink::WebMediaIPH> CreateWebMediaIPH(
+      content::RenderFrame* render_frame);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_RENDERER_CONTENT_RENDERER_CLIENT_H_