Allow FakeVideoCaptureDeviceFactory to specify number of supported formats per device.

media/capture/video/fake_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.
 
 // Implementation of a fake VideoCaptureDeviceFactory class.
 
 #ifndef MEDIA_CAPTURE_VIDEO_FAKE_VIDEO_CAPTURE_DEVICE_FACTORY_H_
 #define MEDIA_CAPTURE_VIDEO_FAKE_VIDEO_CAPTURE_DEVICE_FACTORY_H_
 
 #include "media/capture/video/fake_video_capture_device.h"
@@ skipping 18 matching lines @@
       VideoCaptureFormats* supported_formats) override;
 
   void set_number_of_devices(int number_of_devices) {
     DCHECK(thread_checker_.CalledOnValidThread());
     number_of_devices_ = number_of_devices;
   }
   int number_of_devices() {
     DCHECK(thread_checker_.CalledOnValidThread());
     return number_of_devices_;
   }
+  int number_of_formats_per_device() {
+    DCHECK(thread_checker_.CalledOnValidThread());
+    return number_of_formats_per_device_;
+  }
 
  private:
   void ParseCommandLine();
 
   int number_of_devices_;
+  int number_of_formats_per_device_;
   FakeVideoCaptureDevice::BufferOwnership fake_vcd_ownership_;
   float frame_rate_;
   bool command_line_parsed_ = false;
 };
 
 }  // namespace media
 
 #endif  // MEDIA_CAPTURE_VIDEO_FAKE_VIDEO_CAPTURE_DEVICE_FACTORY_H_