Remove VideoCaptureDeviceFactory::EnumerateDeviceDescriptors()

media/capture/video/video_capture_device_factory.h

 // Copyright 2014 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 MEDIA_CAPTURE_VIDEO_VIDEO_CAPTURE_DEVICE_FACTORY_H_
 #define MEDIA_CAPTURE_VIDEO_VIDEO_CAPTURE_DEVICE_FACTORY_H_
 
 #include "base/macros.h"
 #include "base/threading/thread_checker.h"
 #include "media/capture/video/video_capture_device.h"
 
 namespace media {
 
 // VideoCaptureDeviceFactory is the base class for creation of video capture
 // devices in the different platforms. VCDFs are created by MediaStreamManager
 // on IO thread and plugged into VideoCaptureManager, who owns and operates them
 // in Device Thread (a.k.a. Audio Thread).
-// Typical operation is to first call EnumerateDeviceDescriptors() to obtain
+// Typical operation is to first call GetDeviceDescriptors() to obtain
 // information about available devices. The obtained descriptors can then be
 // used to either obtain the supported formats of a device using
 // GetSupportedFormats(), or to create an instance of VideoCaptureDevice for
 // the device using CreateDevice().
 // TODO(chfremer): Add a layer on top of the platform-specific implementations
 // that uses strings instead of descriptors as keys for accessing devices.
 // crbug.com/665065
 class CAPTURE_EXPORT VideoCaptureDeviceFactory {
  public:
   static std::unique_ptr<VideoCaptureDeviceFactory> CreateFactory(
       scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner);
 
   VideoCaptureDeviceFactory();
   virtual ~VideoCaptureDeviceFactory();
 
   // Creates a VideoCaptureDevice object. Returns NULL if something goes wrong.
   virtual std::unique_ptr<VideoCaptureDevice> CreateDevice(
       const VideoCaptureDeviceDescriptor& device_descriptor) = 0;
 
-  // Asynchronous version of GetDeviceDescriptors calling back to |callback|.
-  // TODO(chfremer): Consider removing this if none of the implementations
-  // overrides it. See crbug.com/708233.
-  virtual void EnumerateDeviceDescriptors(
-      const base::Callback<
-          void(std::unique_ptr<VideoCaptureDeviceDescriptors>)>& callback);
-
   // Obtains the supported formats of a device.
   // This method should be called before allocating or starting a device. In
   // case format enumeration is not supported, or there was a problem
   // |supported_formats| will be empty.
   virtual void GetSupportedFormats(
       const VideoCaptureDeviceDescriptor& device_descriptor,
       VideoCaptureFormats* supported_formats) = 0;
 
   // Gets descriptors of all video capture devices connected.
   // Used by the default implementation of EnumerateDevices().
   // Note: The same physical device may appear more than once if it is
   // accessible through different APIs.
   virtual void GetDeviceDescriptors(
       VideoCaptureDeviceDescriptors* device_descriptors) = 0;
 
  protected:
   base::ThreadChecker thread_checker_;
 
  private:
   static VideoCaptureDeviceFactory* CreateVideoCaptureDeviceFactory(
       scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner);
 
   DISALLOW_COPY_AND_ASSIGN(VideoCaptureDeviceFactory);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_CAPTURE_VIDEO_VIDEO_CAPTURE_DEVICE_FACTORY_H_