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

ui/views/drag_controller.h

Index: ui/views/drag_controller.h
diff --git a/ui/views/drag_controller.h b/ui/views/drag_controller.h
index eace6a9839bc8c19c442abdc93c69ed57f9ed5a0..601a5a37ed03c808732989b5cec7e8adcea762b2 100644
--- a/ui/views/drag_controller.h
+++ b/ui/views/drag_controller.h
@@ -25,20 +25,19 @@ class VIEWS_EXPORT DragController {
  public:
   // Writes the data for the drag.
   virtual void WriteDragDataForView(View* sender,
-                                    const gfx::Point& press_pt,
+                                    const gfx::PointF& press_pt,
                                     ui::OSExchangeData* data) = 0;
 
   // Returns the supported drag operations (see DragDropTypes for possible
   // values). A drag is only started if this returns a non-zero value.
-  virtual int GetDragOperationsForView(View* sender,
-                                       const gfx::Point& p) = 0;
+  virtual int GetDragOperationsForView(View* sender, const gfx::PointF& p) = 0;
 
   // Returns true if a drag operation can be started.
   // |press_pt| represents the coordinates where the mouse was initially
   // pressed down. |p| is the current mouse coordinates.
   virtual bool CanStartDragForView(View* sender,
-                                   const gfx::Point& press_pt,
-                                   const gfx::Point& p) = 0;
+                                   const gfx::PointF& press_pt,
+                                   const gfx::PointF& p) = 0;
 
  protected:
   virtual ~DragController() {}