[Mojo Video Capture] Cleanup naming of classes/files in services/video_capture

services/video_capture/public/cpp/capture_settings.h

 // Copyright 2016 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 SERVICES_VIDEO_CAPTURE_PUBLIC_CPP_VIDEO_CAPTURE_FORMAT_H_
-#define SERVICES_VIDEO_CAPTURE_PUBLIC_CPP_VIDEO_CAPTURE_FORMAT_H_
+#ifndef SERVICES_VIDEO_CAPTURE_PUBLIC_CPP_CAPTURE_SETTINGS_H_
+#define SERVICES_VIDEO_CAPTURE_PUBLIC_CPP_CAPTURE_SETTINGS_H_
 
 #include "media/capture/video_capture_types.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace video_capture {
 
-// Cpp equivalent of Mojo struct video_capture::mojom::VideoCaptureFormat.
-struct VideoCaptureFormat {
+// Cpp equivalent of Mojo struct video_capture::mojom::CaptureFormat.
+struct I420CaptureFormat {
   gfx::Size frame_size;
   float frame_rate;
 
-  bool operator==(const VideoCaptureFormat& other) const {
+  bool operator==(const I420CaptureFormat& other) const {
     return frame_size == other.frame_size && frame_rate == other.frame_rate;
   }
 
   void ConvertToMediaVideoCaptureFormat(
       media::VideoCaptureFormat* target) const {
     target->frame_size = frame_size;
     target->frame_rate = frame_rate;
     target->pixel_format = media::PIXEL_FORMAT_I420;
     target->pixel_storage = media::PIXEL_STORAGE_CPU;
   }
 };
 
-// Cpp equivalent of Mojo struct video_capture::mojom::VideoCaptureSettings.
-struct VideoCaptureSettings {
-  VideoCaptureFormat format;
+// Cpp equivalent of Mojo struct video_capture::mojom::CaptureSettings.
+struct CaptureSettings {
+  I420CaptureFormat format;
   media::ResolutionChangePolicy resolution_change_policy;
   media::PowerLineFrequency power_line_frequency;
 
   void ConvertToMediaVideoCaptureParams(
       media::VideoCaptureParams* target) const {
     format.ConvertToMediaVideoCaptureFormat(&(target->requested_format));
     target->resolution_change_policy = resolution_change_policy;
     target->power_line_frequency = power_line_frequency;
   }
 };
 
 }  // namespace video_capture
 
-#endif  // SERVICES_VIDEO_CAPTURE_PUBLIC_CPP_VIDEO_CAPTURE_FORMAT_H_
+#endif  // SERVICES_VIDEO_CAPTURE_PUBLIC_CPP_CAPTURE_SETTINGS_H_