Index: cc/output/software_output_device.h |
diff --git a/cc/output/software_output_device.h b/cc/output/software_output_device.h |
index e203902f2e2c8ff58a3f07ef8b2b7e7aa12b5b3e..dbb358ec9d42c27a19fb4f0c6386600bd4e80fa2 100644 |
--- a/cc/output/software_output_device.h |
+++ b/cc/output/software_output_device.h |
@@ -55,7 +55,7 @@ class CC_EXPORT SoftwareOutputDevice { |
// Blit the pixel content of the SoftwareOutputDevice by |delta| with the |
// write clipped to |clip_rect|. |
- virtual void Scroll(gfx::Vector2d delta, |
+ virtual void Scroll(const gfx::Vector2d& delta, |
const gfx::Rect& clip_rect); |
// Discard the backing buffer in the surface provided by this instance. |