Make VEA test support videos with different coded size and visible size

media/base/video_frame.h

Index: media/base/video_frame.h
diff --git a/media/base/video_frame.h b/media/base/video_frame.h
index 1ea26001de46d161bebc0cf9a1c6853c55eb84d7..1b6b349bc7d3b19bf22f21941877524f55353c64 100644
--- a/media/base/video_frame.h
+++ b/media/base/video_frame.h
@@ -240,7 +240,11 @@ class MEDIA_EXPORT VideoFrame : public base::RefCountedThreadSafe<VideoFrame> {
 
   // Returns the number of bytes per row for the given plane, format, and width.
   // The width may be aligned to format requirements.
-  static int RowBytes(size_t plane, Format format, int width);
+  static size_t RowBytes(size_t plane, Format format, int width);
+
+  // Returns the number of rows for the given plane, format, and height.
+  // The height may be aligned to format requirements.
+  static size_t Rows(size_t plane, Format format, int height);
 
   Format format() const { return format_; }