1 files changed, 1 insertions, 0 deletions
diff --git a/cc/base/math_util.h b/cc/base/math_util.h
index 6512bb4..a83ab4f 100644
--- a/cc/base/math_util.h
+++ b/cc/base/math_util.h
@@ -30,6 +30,7 @@ namespace gfx {
 class QuadF;
 class Rect;
 class RectF;
+class SizeF;
 class Transform;
 class Vector2dF;
 class Vector2d;