mac_views_browser: fixed interactive_ui_tests compilation.

chrome/test/base/interactive_test_utils.h

Index: chrome/test/base/interactive_test_utils.h
diff --git a/chrome/test/base/interactive_test_utils.h b/chrome/test/base/interactive_test_utils.h
index e8c7a224b16fb61f8d4c12931634602e3f5f5573..f0ccc770f2a8cfae8ca6437cdfc83364527badf7 100644
--- a/chrome/test/base/interactive_test_utils.h
+++ b/chrome/test/base/interactive_test_utils.h
@@ -132,6 +132,9 @@ void MoveMouseToCenterAndPress(views::View* view,
                                ui_controls::MouseButton button,
                                int state,
                                const base::Closure& task);
+
+// Returns the center of |view| in screen coordinates.
+gfx::Point GetCenterInScreenCoordinates(const views::View* view);
 #endif
 
 namespace internal {