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

ash/shelf/shelf_button_pressed_metric_tracker_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/shelf/shelf_button_pressed_metric_tracker.h"
 
 #include "ash/shelf/shelf.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/test/shelf_button_pressed_metric_tracker_test_api.h"
 #include "ash/test/shelf_test_api.h"
@@ skipping 140 matching lines @@
   const DummyEvent kDummyEvent;
   metric_tracker_->ButtonPressed(kDummyEvent, sender, performed_action);
 }
 
 }  // namespace
 
 // Verifies that a Launcher_ButtonPressed_Mouse UMA user action is recorded when
 // a button is pressed by a mouse event.
 TEST_F(ShelfButtonPressedMetricTrackerTest,
        Launcher_ButtonPressed_MouseIsRecordedWhenIconActivatedByMouse) {
-  const ui::MouseEvent mouse_event(ui::ET_MOUSE_PRESSED, gfx::Point(),
-                                   gfx::Point(), base::TimeDelta(), 0, 0);
+  const ui::MouseEvent mouse_event(ui::ET_MOUSE_PRESSED, gfx::PointF(),
+                                   gfx::PointF(), base::TimeDelta(), 0, 0);
 
   base::UserActionTester user_action_tester;
   ButtonPressed(mouse_event);
   EXPECT_EQ(1,
             user_action_tester.GetActionCount("Launcher_ButtonPressed_Mouse"));
 }
 
 // Verifies that a Launcher_ButtonPressed_Touch UMA user action is recorded when
 // a button is pressed by a touch event.
 TEST_F(ShelfButtonPressedMetricTrackerTest,
        Launcher_ButtonPressed_MouseIsRecordedWhenIconActivatedByTouch) {
-  const ui::TouchEvent touch_event(ui::ET_GESTURE_TAP, gfx::Point(), 0,
+  const ui::TouchEvent touch_event(ui::ET_GESTURE_TAP, gfx::PointF(), 0,
                                    base::TimeDelta());
 
   base::UserActionTester user_action_tester;
   ButtonPressed(touch_event);
   EXPECT_EQ(1,
             user_action_tester.GetActionCount("Launcher_ButtonPressed_Touch"));
 }
 
 // Verifies that a Launcher_LaunchTask UMA user action is recorded when
 // pressing a button causes a new window to be created.
@@ skipping 105 matching lines @@
 
   histogram_tester.ExpectTotalCount(
       kTimeBetweenWindowMinimizedAndActivatedActionsHistogramName, 1);
   histogram_tester.ExpectBucketCount(
       kTimeBetweenWindowMinimizedAndActivatedActionsHistogramName,
       kTimeDeltaInMilliseconds, 1);
 }
 
 }  // namespace test
 }  // namespace ash