ui: Remove implicit flooring in skia rect conversion methods.

ash/wm/image_grid.h

 // 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.
 
 #ifndef ASH_WM_IMAGE_GRID_H_
 #define ASH_WM_IMAGE_GRID_H_
 
 #include "ash/ash_export.h"
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
@@ skipping 60 matching lines @@
       return grid_->top_right_painter_->clip_rect_;
     }
     gfx::Rect bottom_left_clip_rect() const {
       return grid_->bottom_left_painter_->clip_rect_;
     }
     gfx::Rect bottom_right_clip_rect() const {
       return grid_->bottom_right_painter_->clip_rect_;
     }
 
     // Returns |layer|'s bounds after applying the layer's current transform.
-    gfx::Rect GetTransformedLayerBounds(const ui::Layer& layer);
+    gfx::RectF GetTransformedLayerBounds(const ui::Layer& layer);
 
    private:
     ImageGrid* grid_;  // not owned
 
     DISALLOW_COPY_AND_ASSIGN(TestAPI);
   };
 
   ImageGrid();
   ~ImageGrid();
 
@@ skipping 117 matching lines @@
   scoped_ptr<ImagePainter> bottom_painter_;
   scoped_ptr<ImagePainter> bottom_right_painter_;
 
   DISALLOW_COPY_AND_ASSIGN(ImageGrid);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_WM_IMAGE_GRID_H_