[Media] Add user gesture reporting for API calls to midi and media streams.

chrome/browser/media/chrome_midi_permission_context.h

 // Copyright 2013 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 CHROME_BROWSER_MEDIA_CHROME_MIDI_PERMISSION_CONTEXT_H_
 #define CHROME_BROWSER_MEDIA_CHROME_MIDI_PERMISSION_CONTEXT_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "content/public/browser/browser_context.h"
@@ skipping 15 matching lines @@
 
   // KeyedService methods:
   virtual void Shutdown() OVERRIDE;
 
   // Request to ask users permission about MIDI.
   void RequestMidiSysExPermission(
       int render_process_id,
       int render_view_id,
       int bridge_id,
       const GURL& requesting_frame,
+      bool user_gesture,
       const content::BrowserContext::MidiSysExPermissionCallback& callback);
 
   // Cancel a pending MIDI permission request.
   void CancelMidiSysExPermissionRequest(int render_process_id,
                                         int render_view_id,
                                         int bridge_id,
                                         const GURL& requesting_frame);
 
   // Called when the permission decision is made. If a permissions prompt is
   // shown to the user it will be called when the user selects an option
   // from that prompt.
   void NotifyPermissionSet(
       const PermissionRequestID& id,
       const GURL& requesting_frame,
       const content::BrowserContext::MidiSysExPermissionCallback& callback,
       bool allowed);
 
  private:
   // Decide whether the permission should be granted.
   // Calls PermissionDecided if permission can be decided non-interactively,
   // or NotifyPermissionSet if permission decided by presenting an infobar.
   void DecidePermission(
       content::WebContents* web_contents,
       const PermissionRequestID& id,
       const GURL& requesting_frame,
       const GURL& embedder,
+      bool user_gesture,
       const content::BrowserContext::MidiSysExPermissionCallback& callback);
 
   // Called when permission is granted without interactively asking the user.
   void PermissionDecided(
       const PermissionRequestID& id,
       const GURL& requesting_frame,
       const GURL& embedder,
       const content::BrowserContext::MidiSysExPermissionCallback& callback,
       bool allowed);
 
   // Return an instance of the infobar queue controller, creating it if needed.
   PermissionQueueController* GetQueueController();
 
   // Removes any pending InfoBar request.
   void CancelPendingInfobarRequest(const PermissionRequestID& id);
 
   Profile* const profile_;
   bool shutting_down_;
   scoped_ptr<PermissionQueueController> permission_queue_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeMidiPermissionContext);
 };
 
 #endif  // CHROME_BROWSER_MEDIA_CHROME_MIDI_PERMISSION_CONTEXT_H_