Video capture: Refactor GetBestMatchedFormat from Win to OS independent

media/video/capture/video_capture_types.h

Index: media/video/capture/video_capture_types.h
diff --git a/media/video/capture/video_capture_types.h b/media/video/capture/video_capture_types.h
index a791b4e9eb4e9ff498993e55ead2323f8f05d903..33e5e875128a6a5f94a14d3faf3398403e91c346 100644
--- a/media/video/capture/video_capture_types.h
+++ b/media/video/capture/video_capture_types.h
@@ -75,6 +75,20 @@ class MEDIA_EXPORT VideoCaptureParams {
   bool allow_resolution_change;
 };
 
+// Comparison function object used for comparing video capture formats when
+// finding the most closely matched video format given a requested video format.
+// If CompareVideoFormat::operator(lhs, rhs) is true, then format lhs is more
+// closely matched to the requested format than format rhs.
+class CompareVideoFormat {

[tommi (sloooow) - chröme, 2014/09/09 20:11:11]

Is it possible to keep this in the cc file only?

+ public:
+  CompareVideoFormat(const VideoCaptureFormat& requested);

[mcasas, 2014/09/10 16:52:28]

explicit

+  bool operator()(const VideoCaptureFormat& lhs,
+                  const VideoCaptureFormat& rhs) const;
+
+ private:
+  const VideoCaptureFormat requested_;
+};
+
 }  // namespace media
 
 #endif  // MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_TYPES_H_