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

content/browser/renderer_host/media/media_stream_manager.cc

 // 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.
 
 #include "content/browser/renderer_host/media/media_stream_manager.h"
 
 #include <list>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 148 matching lines @@
 // several subclasses of DeviceRequest and move some of the responsibility of
 // the MediaStreamManager to the subclasses to get rid of the way too many if
 // statements in MediaStreamManager.
 class MediaStreamManager::DeviceRequest {
  public:
   DeviceRequest(MediaStreamRequester* requester,
                 int requesting_process_id,
                 int requesting_view_id,
                 int page_request_id,
                 const GURL& security_origin,
+                bool user_gesture,
                 MediaStreamRequestType request_type,
                 const StreamOptions& options,
                 const ResourceContext::SaltCallback& salt_callback)
       : requester(requester),
         requesting_process_id(requesting_process_id),
         requesting_view_id(requesting_view_id),
         page_request_id(page_request_id),
         security_origin(security_origin),
+        user_gesture(user_gesture),
         request_type(request_type),
         options(options),
         salt_callback(salt_callback),
         state_(NUM_MEDIA_TYPES, MEDIA_REQUEST_STATE_NOT_REQUESTED),
         audio_type_(MEDIA_NO_SERVICE),
         video_type_(MEDIA_NO_SERVICE) {
   }
 
   ~DeviceRequest() {}
 
@@ skipping 13 matching lines @@
 
   // Creates a MediaStreamRequest object that is used by this request when UI
   // is asked for permission and device selection.
   void CreateUIRequest(const std::string& requested_audio_device_id,
                        const std::string& requested_video_device_id) {
     DCHECK(!ui_request_);
     ui_request_.reset(new MediaStreamRequest(requesting_process_id,
                                              requesting_view_id,
                                              page_request_id,
                                              security_origin,
+                                             user_gesture,
                                              request_type,
                                              requested_audio_device_id,
                                              requested_video_device_id,
                                              audio_type_,
                                              video_type_));
   }
 
   // Creates a tab capture specific MediaStreamRequest object that is used by
   // this request when UI is asked for permission and device selection.
   void CreateTabCatureUIRequest(int target_render_process_id,
                                 int target_render_view_id,
                                 const std::string& tab_capture_id) {
     DCHECK(!ui_request_);
     ui_request_.reset(new MediaStreamRequest(target_render_process_id,
                                              target_render_view_id,
                                              page_request_id,
                                              security_origin,
+                                             user_gesture,
                                              request_type,
                                              "",
                                              "",
                                              audio_type_,
                                              video_type_));
     ui_request_->tab_capture_device_id = tab_capture_id;
   }
 
   const MediaStreamRequest* UIRequest() const { return ui_request_.get(); }
 
@@ skipping 48 matching lines @@
   // will receive a handle to the MediaStream. This may be different from
   // MediaStreamRequest::render_view_id which in the tab capture case
   // specifies the target renderer from which audio and video is captured.
   const int requesting_view_id;
 
   // An ID the render view provided to identify this request.
   const int page_request_id;
 
   const GURL security_origin;
 
+  const bool user_gesture;
+
   const MediaStreamRequestType request_type;
 
   const StreamOptions options;
 
   ResourceContext::SaltCallback salt_callback;
 
   StreamDeviceInfoArray devices;
 
   // Callback to the requester which audio/video devices have been selected.
   // It can be null if the requester has no interest to know the result.
@@ skipping 70 matching lines @@
     const MediaRequestResponseCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   // TODO(perkj): The argument list with NULL parameters to DeviceRequest
   // suggests that this is the wrong design. Can this be refactored?
   DeviceRequest* request = new DeviceRequest(NULL,
                                              render_process_id,
                                              render_view_id,
                                              page_request_id,
                                              security_origin,
+                                             false,  // user gesture
                                              MEDIA_DEVICE_ACCESS,
                                              options,
                                              base::Bind(&ReturnEmptySalt));
 
   const std::string& label = AddRequest(request);
 
   request->callback = callback;
   // Post a task and handle the request asynchronously. The reason is that the
   // requester won't have a label for the request until this function returns
   // and thus can not handle a response. Using base::Unretained is safe since
   // MediaStreamManager is deleted on the UI thread, after the IO thread has
   // been stopped.
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       base::Bind(&MediaStreamManager::SetupRequest,
                  base::Unretained(this), label));
   return label;
 }
 
 void MediaStreamManager::GenerateStream(MediaStreamRequester* requester,
                                         int render_process_id,
                                         int render_view_id,
                                         const ResourceContext::SaltCallback& sc,
                                         int page_request_id,
                                         const StreamOptions& options,
-                                        const GURL& security_origin) {
+                                        const GURL& security_origin,
+                                        bool user_gesture) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   DVLOG(1) << "GenerateStream()";
   if (CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kUseFakeUIForMediaStream)) {
     UseFakeUI(scoped_ptr<FakeMediaStreamUIProxy>());
   }
 
   DeviceRequest* request = new DeviceRequest(requester,
                                              render_process_id,
                                              render_view_id,
                                              page_request_id,
                                              security_origin,
+                                             user_gesture,
                                              MEDIA_GENERATE_STREAM,
                                              options,
                                              sc);
 
   const std::string& label = AddRequest(request);
 
   // Post a task and handle the request asynchronously. The reason is that the
   // requester won't have a label for the request until this function returns
   // and thus can not handle a response. Using base::Unretained is safe since
   // MediaStreamManager is deleted on the UI thread, after the IO thread has
@@ skipping 172 matching lines @@
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   DCHECK(requester);
   DCHECK(type == MEDIA_DEVICE_AUDIO_CAPTURE ||
          type == MEDIA_DEVICE_VIDEO_CAPTURE);
 
   DeviceRequest* request = new DeviceRequest(requester,
                                              render_process_id,
                                              render_view_id,
                                              page_request_id,
                                              security_origin,
+                                             false,  // user gesture
                                              MEDIA_ENUMERATE_DEVICES,
                                              StreamOptions(),
                                              sc);
   if (IsAudioMediaType(type))
     request->SetAudioType(type);
   else if (IsVideoMediaType(type))
     request->SetVideoType(type);
 
   const std::string& label = AddRequest(request);
   // Post a task and handle the request asynchronously. The reason is that the
@@ skipping 59 matching lines @@
     options.mandatory_video.push_back(
         StreamOptions::Constraint(kMediaStreamSourceInfoId, device_id));
   } else {
     NOTREACHED();
   }
   DeviceRequest* request = new DeviceRequest(requester,
                                              render_process_id,
                                              render_view_id,
                                              page_request_id,
                                              security_origin,
+                                             false,  // user gesture
                                              MEDIA_OPEN_DEVICE,
                                              options,
                                              sc);
 
   const std::string& label = AddRequest(request);
   // Post a task and handle the request asynchronously. The reason is that the
   // requester won't have a label for the request until this function returns
   // and thus can not handle a response. Using base::Unretained is safe since
   // MediaStreamManager is deleted on the UI thread, after the IO thread has
   // been stopped.
@@ skipping 1112 matching lines @@
   }
 
   // Always do enumeration even though some enumeration is in progress,
   // because those enumeration commands could be sent before these devices
   // change.
   ++active_enumeration_ref_count_[stream_type];
   GetDeviceManager(stream_type)->EnumerateDevices(stream_type);
 }
 
 }  // namespace content