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

third_party/WebKit/public/web/WebFrameClient.h

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 54 matching lines @@
 #include "public/platform/WebSecurityOrigin.h"
 #include "public/platform/WebSetSinkIdCallbacks.h"
 #include "public/platform/WebSourceLocation.h"
 #include "public/platform/WebStorageQuotaCallbacks.h"
 #include "public/platform/WebStorageQuotaType.h"
 #include "public/platform/WebURLError.h"
 #include "public/platform/WebURLLoader.h"
 #include "public/platform/WebURLRequest.h"
 #include "public/platform/WebWorkerFetchContext.h"
 #include "public/platform/modules/serviceworker/WebServiceWorkerProvider.h"
+#include "public/web/WebMediaIPH.h"
 #include "v8/include/v8.h"
 
 namespace service_manager {
 class InterfaceProvider;
 }
 
 namespace blink {
 
 enum class WebTreeScopeType;
 class WebApplicationCacheHost;
 class WebApplicationCacheHostClient;
 class WebColorChooser;
 class WebColorChooserClient;
 class WebContentDecryptionModule;
 class WebCookieJar;
 class WebDataSource;
 class WebEncryptedMediaClient;
 class WebExternalPopupMenu;
 class WebExternalPopupMenuClient;
 class WebFileChooserCompletion;
 class WebLocalFrame;
+class WebMediaIPH;
 class WebMediaPlayer;
 class WebMediaPlayerClient;
 class WebMediaPlayerEncryptedMediaClient;
 class WebMediaPlayerSource;
 class WebMediaSession;
 class WebServiceWorkerProvider;
 class WebPlugin;
 class WebPresentationClient;
 class WebPushClient;
 class WebRTCPeerConnectionHandler;
@@ skipping 703 matching lines @@
   virtual WebURL OverrideFlashEmbedWithHTML(const WebURL& url) {
     return WebURL();
   }
 
   // Loading --------------------------------------------------------------
 
   virtual std::unique_ptr<blink::WebURLLoader> CreateURLLoader() {
     NOTREACHED();
     return nullptr;
   }
+
+  // Media IPH ------------------------------------------------------------
+
+  virtual std::unique_ptr<WebMediaIPH> CreateMediaIPH() { return nullptr; }

[chrishtr, 2017/06/23 00:39:44]

CreateMediaInProductHelp

 };
 
 }  // namespace blink
 
 #endif