<webview>: First stab at implementing media permission request for guests.

content/renderer/browser_plugin/browser_plugin.h

Index: content/renderer/browser_plugin/browser_plugin.h
diff --git a/content/renderer/browser_plugin/browser_plugin.h b/content/renderer/browser_plugin/browser_plugin.h
index 6abd3e2d7f054ee81f80684f232923583ffcb555..50da3d2041534d972ea8b4fb48f4ef42fcfe38d8 100644
--- a/content/renderer/browser_plugin/browser_plugin.h
+++ b/content/renderer/browser_plugin/browser_plugin.h
@@ -115,6 +115,12 @@ class CONTENT_EXPORT BrowserPlugin :
   // touch events.
   void SetAcceptTouchEvents(bool accept);
 
+  // Requests media access permission from the embedder.
+  void RequestMediaAccess(int request_id);
+  // Informs the BrowserPlugin that the guest's request for media access has
+  // been allowed or denied.
+  void RespondMediaAccess(int request_id, bool allow);
+
   // Tells the BrowserPlugin to tell the guest to navigate to the previous
   // navigation entry in the navigation history.
   void Back();