chrome://media-internals: update MediaInternals when devices capabilities are enumerated.

content/browser/media/media_internals.h

 // 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.
 
 #ifndef CONTENT_BROWSER_MEDIA_MEDIA_INTERNALS_H_
 #define CONTENT_BROWSER_MEDIA_MEDIA_INTERNALS_H_
 
 #include <string>
 #include <vector>
 
 #include "base/callback_forward.h"
 #include "base/compiler_specific.h"
 #include "base/lazy_instance.h"
 #include "base/strings/string16.h"
 #include "base/synchronization/lock.h"
 #include "base/values.h"
 #include "content/common/content_export.h"
 #include "media/audio/audio_logging.h"
+#include "media/video/capture/video_capture_device.h"
+#include "media/video/capture/video_capture_types.h"
 
 namespace media {
 class AudioParameters;
 struct MediaLogEvent;
 }
 
 namespace content {
 
 // This class stores information about currently active media.
 class CONTENT_EXPORT MediaInternals
@@ skipping 10 matching lines @@
   // Called with the update string.
   typedef base::Callback<void(const base::string16&)> UpdateCallback;
 
   // Add/remove update callbacks (see above).  Must be called on the IO thread.
   void AddUpdateCallback(const UpdateCallback& callback);
   void RemoveUpdateCallback(const UpdateCallback& callback);
 
   // Sends all cached data to each registered UpdateCallback.
   void SendEverything();
 
+  // Called to inform of the capabilities enumerated for a video device.
+  void UpdateVideoCaptureDeviceCapabilities(
+      const media::VideoCaptureDevice::Name& name,
+      const media::VideoCaptureFormats& formats);

[burnik, 2014/10/05 23:08:55]

add
const size_t num_devices
as last param. You'll need it to know when you're done enumerating.

[mcasas, 2014/10/07 11:25:40]

Done.

+  // Cleans up internal cache of all video devices' capabilities.

[burnik, 2014/10/03 11:15:41]

Nit: add empty line.

[mcasas, 2014/10/07 11:25:40]

Done.

+  void PurgeVideoCaptureDeviceCapabilities();
+
   // AudioLogFactory implementation.  Safe to call from any thread.
   virtual scoped_ptr<media::AudioLog> CreateAudioLog(
       AudioComponent component) OVERRIDE;
 
  private:
   friend class AudioLogImpl;
   friend class MediaInternalsTest;
   friend struct base::DefaultLazyInstanceTraits<MediaInternals>;
 
   MediaInternals();
@@ skipping 10 matching lines @@
                           const std::string& function,
                           const base::DictionaryValue* value);
   void SendUpdateAndPurgeCache(const std::string& cache_key,
                                const std::string& function,
                                const base::DictionaryValue* value);
   // Must only be accessed on the IO thread.
   std::vector<UpdateCallback> update_callbacks_;
 
   // All variables below must be accessed under |lock_|.
   base::Lock lock_;
-  base::DictionaryValue cached_data_;
+  base::DictionaryValue audio_streams_cached_data_;
   int owner_ids_[AUDIO_COMPONENT_MAX];
+  base::DictionaryValue video_devices_cached_data_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaInternals);
 };
 
 } // namespace content
 
 #endif  // CONTENT_BROWSER_MEDIA_MEDIA_INTERNALS_H_