Hide location bar on WebKit programmatic scroll.

cc/layer_tree_host.h

Index: cc/layer_tree_host.h
diff --git a/cc/layer_tree_host.h b/cc/layer_tree_host.h
index 24bfa89ec40ced646868c4cb63877a2970f83ab6..2c2911a31d33a349e650d352576fb24e252edbe5 100644
--- a/cc/layer_tree_host.h
+++ b/cc/layer_tree_host.h
@@ -175,6 +175,8 @@ public:
 
     void startPageScaleAnimation(gfx::Vector2d targetOffset, bool useAnchor, float scale, base::TimeDelta duration);
 
+    void programmaticScroll(gfx::Vector2d targetOffset);
+
     void applyScrollAndScale(const ScrollAndScaleSet&);
     // This function converts event coordinates when the deviceViewport is zoomed.
     // Coordinates are transformed from logical pixels in the zoomed viewport to