gfx: Make conversions from gfx::Point to PointF explicit.

ui/wm/core/capture_controller_unittest.cc

Index: ui/wm/core/capture_controller_unittest.cc
diff --git a/ui/wm/core/capture_controller_unittest.cc b/ui/wm/core/capture_controller_unittest.cc
index ff072b7fe40d0bf0134286203d03950e63076d9e..cd57df8e504de1a310df31a7a88710b9df0e498b 100644
--- a/ui/wm/core/capture_controller_unittest.cc
+++ b/ui/wm/core/capture_controller_unittest.cc
@@ -98,9 +98,9 @@ TEST_F(CaptureControllerTest, ResetMouseEventHandlerOnCapture) {
 
   // Make a synthesized mouse down event. Ensure that the WindowEventDispatcher
   // will dispatch further mouse events to |w1|.
-  ui::MouseEvent mouse_pressed_event(ui::ET_MOUSE_PRESSED, gfx::Point(5, 5),
-                                     gfx::Point(5, 5), ui::EventTimeForNow(), 0,
-                                     0);
+  ui::MouseEvent mouse_pressed_event(
+      ui::ET_MOUSE_PRESSED, gfx::PointF(5.f, 5.f), gfx::PointF(5.f, 5.f),
+      ui::EventTimeForNow(), 0, 0);
   DispatchEventUsingWindowDispatcher(&mouse_pressed_event);
   EXPECT_EQ(w1.get(), host()->dispatcher()->mouse_pressed_handler());