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

media/video/capture/video_capture_device.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.
 //
 // VideoCaptureDevice is the abstract base class for realizing video capture
 // device support in Chromium. It provides the interface for OS dependent
 // implementations.
 // The class is created and functions are invoked on a thread owned by
 // VideoCaptureManager. Capturing is done on other threads, depending on the OS
 // specific implementation.
@@ skipping 147 matching lines @@
     TransportType transport_type_;
     // Flag used to mark blacklisted devices for QTKit Api.
     bool is_blacklisted_;
 #endif
     // Allow generated copy constructor and assignment.
   };
 
   // Manages a list of Name entries.
   typedef std::list<Name> Names;
 
+  // A convenience wrap of a devices' name and associated supported formats.
+  struct DeviceInfo {

[perkj_chrome, 2014/10/08 11:49:59]

Please move this out of VideoCaptureDevice and why not name it
VideoCaptureDeviceInfo? 

[mcasas, 2014/10/08 14:05:18]

Done.

+    DeviceInfo();
+    DeviceInfo(const Name& name,
+               const VideoCaptureFormats& supported_formats);
+    ~DeviceInfo();
+
+    Name name;
+    VideoCaptureFormats supported_formats;
+  };
+  typedef std::vector<DeviceInfo> DeviceInfos;
+
   class MEDIA_EXPORT Client {
    public:
     // Memory buffer returned by Client::ReserveOutputBuffer().
     class Buffer : public base::RefCountedThreadSafe<Buffer> {
      public:
       int id() const { return id_; }
       void* data() const { return data_; }
       size_t size() const { return size_; }
 
      protected:
@@ skipping 142 matching lines @@
   virtual void CaptureImage() {}
 
  protected:
   static const int kPowerLine50Hz = 50;
   static const int kPowerLine60Hz = 60;
 };
 
 }  // namespace media
 
 #endif  // MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_DEVICE_H_