Media Stream Image Capture (4): wire takePhoto and implement in FakeVCDevice

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 <stddef.h>
 #include <stdint.h>
 #include <string.h>
 #include <algorithm>
@@ skipping 579 matching lines @@
 
     for (const StreamDeviceInfo& device_info : request->devices) {
       if (device_info.device.id == device_id) {
         StopDevice(device_info.device.type, device_info.session_id);
         return;
       }
     }
   }
 }
 
+int MediaStreamManager::VideoDeviceIdToSessionId(
+    const std::string& device_id) const {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+
+  for (const LabeledDeviceRequest& device_request : requests_) {
+    for (const StreamDeviceInfo& info : device_request.second->devices) {
+      if (info.device.id == device_id) {
+        DCHECK_EQ(MEDIA_DEVICE_VIDEO_CAPTURE, info.device.type);
+        return info.session_id;
+      }
+    }
+  }
+  return StreamDeviceInfo::kNoId;
+}
+
 void MediaStreamManager::StopDevice(MediaStreamType type, int session_id) {
   DVLOG(1) << "StopDevice"
            << "{type = " << type << "}"
            << "{session_id = " << session_id << "}";
   DeviceRequests::iterator request_it = requests_.begin();
   while (request_it != requests_.end()) {
     DeviceRequest* request = request_it->second;
     StreamDeviceInfoArray* devices = &request->devices;
     if (devices->empty()) {
       // There is no device in use yet by this request.
@@ skipping 1534 matching lines @@
   if (!ChildProcessSecurityPolicyImpl::GetInstance()->CanRequestURL(
           render_process_id, ConvertToGURL(origin))) {
     LOG(ERROR) << "MSM: Renderer requested a URL it's not allowed to use.";
     return false;
   }
 
   return true;
 }
 
 }  // namespace content