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

ash/shelf/shelf_widget_unittest.cc

Index: ash/shelf/shelf_widget_unittest.cc
diff --git a/ash/shelf/shelf_widget_unittest.cc b/ash/shelf/shelf_widget_unittest.cc
index dcc7ee66375654931fd19e4575e60ea6371114f5..60830508b7bdc773ca76f8f5cce66d707ac196ad 100644
--- a/ash/shelf/shelf_widget_unittest.cc
+++ b/ash/shelf/shelf_widget_unittest.cc
@@ -209,7 +209,7 @@ TEST_F(ShelfWidgetTest, ShelfEdgeOverlappingWindowHitTestMouse) {
     // Create a mouse-event targeting the top of the shelf widget. The
     // window-targeter should find |widget| as the target (instead of the
     // shelf).
-    gfx::Point event_location(widget_bounds.x() + 5, shelf_bounds.y() + 1);
+    gfx::PointF event_location(widget_bounds.x() + 5.f, shelf_bounds.y() + 1.f);
     ui::MouseEvent mouse(ui::ET_MOUSE_MOVED, event_location, event_location,
                          ui::EventTimeForNow(), ui::EF_NONE, ui::EF_NONE);
     ui::EventTarget* target = targeter->FindTargetForEvent(root, &mouse);
@@ -224,7 +224,8 @@ TEST_F(ShelfWidgetTest, ShelfEdgeOverlappingWindowHitTestMouse) {
     // Create a mouse-event targeting the right edge of the shelf widget. The
     // window-targeter should find |widget| as the target (instead of the
     // shelf).
-    gfx::Point event_location(shelf_bounds.right() - 1, widget_bounds.y() + 5);
+    gfx::PointF event_location(shelf_bounds.right() - 1.f,
+                               widget_bounds.y() + 5.f);
     ui::MouseEvent mouse(ui::ET_MOUSE_MOVED, event_location, event_location,
                          ui::EventTimeForNow(), ui::EF_NONE, ui::EF_NONE);
     ui::EventTarget* target = targeter->FindTargetForEvent(root, &mouse);
@@ -249,7 +250,7 @@ TEST_F(ShelfWidgetTest, ShelfEdgeOverlappingWindowHitTestMouse) {
   {
     // Create a mouse-event targeting the top of the shelf widget. This time,
     // window-target should find the shelf as the target.
-    gfx::Point event_location(widget_bounds.x() + 5, shelf_bounds.y() + 1);
+    gfx::PointF event_location(widget_bounds.x() + 5.f, shelf_bounds.y() + 1.f);
     ui::MouseEvent mouse(ui::ET_MOUSE_MOVED, event_location, event_location,
                          ui::EventTimeForNow(), ui::EF_NONE, ui::EF_NONE);
     ui::EventTarget* target = targeter->FindTargetForEvent(root, &mouse);
@@ -282,7 +283,7 @@ TEST_F(ShelfWidgetTest, HiddenShelfHitTestTouch) {
   // Touch just over the shelf. Since the shelf is visible, the window-targeter
   // should not find the shelf as the target.
   {
-    gfx::Point event_location(20, shelf_bounds.y() - 1);
+    gfx::PointF event_location(20.f, shelf_bounds.y() - 1.f);
     ui::TouchEvent touch(ui::ET_TOUCH_PRESSED, event_location, 0,
                          ui::EventTimeForNow());
     EXPECT_NE(shelf_widget->GetNativeWindow(),
@@ -300,7 +301,7 @@ TEST_F(ShelfWidgetTest, HiddenShelfHitTestTouch) {
   // Touch just over the shelf again. This time, the targeter should find the
   // shelf as the target.
   {
-    gfx::Point event_location(20, shelf_bounds.y() - 1);
+    gfx::PointF event_location(20.f, shelf_bounds.y() - 1.f);
     ui::TouchEvent touch(ui::ET_TOUCH_PRESSED, event_location, 0,
                          ui::EventTimeForNow());
     EXPECT_EQ(shelf_widget->GetNativeWindow(),