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

third_party/WebKit/public/web/WebFrameClient.h

Index: third_party/WebKit/public/web/WebFrameClient.h
diff --git a/third_party/WebKit/public/web/WebFrameClient.h b/third_party/WebKit/public/web/WebFrameClient.h
index 10a10b0e9041c443b6584f1ef1d0ef2c0fb26ac2..7852df6904d91712daf697010b193f684b2adf67 100644
--- a/third_party/WebKit/public/web/WebFrameClient.h
+++ b/third_party/WebKit/public/web/WebFrameClient.h
@@ -72,6 +72,7 @@
 #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 {
@@ -93,6 +94,7 @@ class WebExternalPopupMenu;
 class WebExternalPopupMenuClient;
 class WebFileChooserCompletion;
 class WebLocalFrame;
+class WebMediaIPH;
 class WebMediaPlayer;
 class WebMediaPlayerClient;
 class WebMediaPlayerEncryptedMediaClient;
@@ -816,6 +818,10 @@ class BLINK_EXPORT WebFrameClient {
     NOTREACHED();
     return nullptr;
   }
+
+  // Media IPH ------------------------------------------------------------
+
+  virtual std::unique_ptr<WebMediaIPH> CreateMediaIPH() { return nullptr; }

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

CreateMediaInProductHelp

 };
 
 }  // namespace blink