PPAPI: implement GetSupportedPreviewSizes

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 f8e8cab9ebaa4ed48aee99fd319333249d8a2354..16d059a3ac1303da335a1fa5150da6a291d2e8c0 100644
--- a/media/video/capture/video_capture_types.h
+++ b/media/video/capture/video_capture_types.h
@@ -83,10 +83,15 @@ class MEDIA_EXPORT VideoCaptureFormat {
 class MEDIA_EXPORT ImageCaptureFormat {
  public:
   ImageCaptureFormat();
-
   ImageCaptureFormat(const gfx::Size& frame_size,
                      VideoPixelFormat pixel_format);
 
+  std::string ToString() const;
+
+  // Checks that all values are in the expected range. All limits are specified
+  // in media::Limits.
+  bool IsValid() const;
+
   gfx::Size frame_size;
   VideoPixelFormat pixel_format;
 };
@@ -110,6 +115,15 @@ class MEDIA_EXPORT VideoCaptureParams {
   ResolutionChangePolicy resolution_change_policy;
 };
 
+// Parameters for starting image capture.
+class MEDIA_EXPORT ImageCaptureParams {

[wuchengli, 2015/01/19 14:05:03]

Remove this. No need a class with only one variable. Just use
ImageCaptureFormat.

[Justin Chuang, 2015/01/26 15:00:50]

Removed. I forgot to remove this. Thx

+ public:
+  ImageCaptureParams();
+
+  // Requests a resolution and format at which the capture will occur.
+  ImageCaptureFormat requested_format;
+};
+
 }  // namespace media
 
 #endif  // MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_TYPES_H_