Windows video capture: Remove duplicated code from GetDeviceSupportedFormats*

media/video/capture/win/capability_list_win.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.
 
 // Windows specific implementation of VideoCaptureDevice.
 // DirectShow is used for capturing. DirectShow provide its own threads
 // for capturing.
 
 #ifndef MEDIA_VIDEO_CAPTURE_WIN_CAPABILITY_LIST_WIN_H_
 #define MEDIA_VIDEO_CAPTURE_WIN_CAPABILITY_LIST_WIN_H_
 
 #include <list>
 
 #include "base/basictypes.h"
 #include "base/threading/non_thread_safe.h"
 #include "media/video/capture/video_capture_types.h"
 
 namespace media {
 
 struct VideoCaptureCapabilityWin {
-  explicit VideoCaptureCapabilityWin(int index)
-      : stream_index(index),
-        frame_rate_numerator(0),
-        frame_rate_denominator(1) {}
+  explicit VideoCaptureCapabilityWin(int index) : stream_index(index) {}
   int stream_index;

[tommi (sloooow) - chröme, 2014/10/22 16:23:13]

can this be const?

-  // Internally to Media Foundation Api type devices we use rational framerates
-  // so framerates can be properly represented, f.i. 29.971fps= 30000/1001.
-  int frame_rate_numerator;
-  int frame_rate_denominator;
   VideoCaptureFormat supported_format;
 };
 
 class CapabilityList : public base::NonThreadSafe {
  public:
   CapabilityList();
   ~CapabilityList();
 
   bool empty() const { return capabilities_.empty(); }
 
   // Appends an entry to the list.
   void Add(const VideoCaptureCapabilityWin& capability);
 
   // Loops through the list of capabilities and returns an index of the best
   // matching capability.  The algorithm prioritizes height, width, frame rate
   // and color format in that order.
   const VideoCaptureCapabilityWin& GetBestMatchedFormat(
       int requested_width,
       int requested_height,
       float requested_frame_rate) const;
 
+  void CapabilitiesToVideoCaptureFormats(VideoCaptureFormats* formats) const;
+
  private:
   typedef std::list<VideoCaptureCapabilityWin> Capabilities;
   Capabilities capabilities_;
 
   DISALLOW_COPY_AND_ASSIGN(CapabilityList);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_VIDEO_CAPTURE_WIN_CAPABILITY_LIST_WIN_H_