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

ui/wm/core/window_animations.cc

 // Copyright (c) 2012 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 "ui/wm/core/window_animations.h"
 
 #include <math.h>
 
 #include <algorithm>
 #include <vector>
@@ skipping 442 matching lines @@
       new ui::InterpolatedConstantTransform(transform));
 
   scoped_ptr<ui::InterpolatedTransform> scale(
       new ui::InterpolatedScale(1, kWindowAnimation_Rotate_ScaleFactor));
   scoped_ptr<ui::InterpolatedTransform> scale_about_pivot(
       new ui::InterpolatedTransformAboutPivot(
           gfx::Point(xcenter, kWindowAnimation_Rotate_TranslateY),
           scale.release()));
 
   scoped_ptr<ui::InterpolatedTransform> translation(
-      new ui::InterpolatedTranslation(gfx::Point(), gfx::Point(
-          0, kWindowAnimation_Rotate_TranslateY)));
+      new ui::InterpolatedTranslation(
+          gfx::PointF(), gfx::PointF(0, kWindowAnimation_Rotate_TranslateY)));
 
   scoped_ptr<ui::InterpolatedTransform> rotation(
       new ui::InterpolatedAxisAngleRotation(
           gfx::Vector3dF(1, 0, 0), 0, kWindowAnimation_Rotate_DegreesX));
 
   scale_about_pivot->SetChild(perspective.release());
   translation->SetChild(scale_about_pivot.release());
   rotation->SetChild(translation.release());
   rotation->SetReversed(show);
 
@@ skipping 184 matching lines @@
   // being accessed via Remote Desktop.
   if (ui::ScopedAnimationDurationScaleMode::duration_scale_mode() ==
       ui::ScopedAnimationDurationScaleMode::NON_ZERO_DURATION)
     return false;
 
   // Let the user decide whether or not to play the animation.
   return !gfx::Animation::ShouldRenderRichAnimation();
 }
 
 }  // namespace wm