views: Update event-related API to use PointF/RectF instead of Point/Rect.

ash/drag_drop/drag_drop_interactive_uitest.cc

Index: ash/drag_drop/drag_drop_interactive_uitest.cc
diff --git a/ash/drag_drop/drag_drop_interactive_uitest.cc b/ash/drag_drop/drag_drop_interactive_uitest.cc
index ef32801052a012897f417ff02839e0be2680f511..bbae034b97b956ee94458e6aba52e3715e5e4591 100644
--- a/ash/drag_drop/drag_drop_interactive_uitest.cc
+++ b/ash/drag_drop/drag_drop_interactive_uitest.cc
@@ -28,11 +28,11 @@ class DraggableView : public views::View {
   virtual ~DraggableView() {}
 
   // views::View overrides:
-  virtual int GetDragOperations(const gfx::Point& press_pt) OVERRIDE {
+  virtual int GetDragOperations(const gfx::PointF& press_pt) OVERRIDE {
     return ui::DragDropTypes::DRAG_MOVE;
   }
-  virtual void WriteDragData(const gfx::Point& press_pt,
-                             OSExchangeData* data)OVERRIDE {
+  virtual void WriteDragData(const gfx::PointF& press_pt,
+                             OSExchangeData* data) OVERRIDE {
     data->SetString(base::UTF8ToUTF16("test"));
   }