ui: Cleanup the usage of scoped_ptr throughout.

ui/events/event.cc

Index: ui/events/event.cc
diff --git a/ui/events/event.cc b/ui/events/event.cc
index 86d4dd63916820c92b5c0cdf991572591f191b89..5e7d8c86377a4d6a7c5546dcde02b6a76e6c71d4 100644
--- a/ui/events/event.cc
+++ b/ui/events/event.cc
@@ -125,35 +125,35 @@ namespace ui {
 // static
 scoped_ptr<Event> Event::Clone(const Event& event) {
   if (event.IsKeyEvent()) {
-    return scoped_ptr<Event>(new KeyEvent(static_cast<const KeyEvent&>(event)));
+    return make_scoped_ptr(new KeyEvent(static_cast<const KeyEvent&>(event)));
   }
 
   if (event.IsMouseEvent()) {
     if (event.IsMouseWheelEvent()) {
-      return scoped_ptr<Event>(
+      return make_scoped_ptr(
           new MouseWheelEvent(static_cast<const MouseWheelEvent&>(event)));
     }
 
-    return scoped_ptr<Event>(
+    return make_scoped_ptr(
         new MouseEvent(static_cast<const MouseEvent&>(event)));
   }
 
   if (event.IsTouchEvent()) {
-    return scoped_ptr<Event>(
+    return make_scoped_ptr(
         new TouchEvent(static_cast<const TouchEvent&>(event)));
   }
 
   if (event.IsGestureEvent()) {
-    return scoped_ptr<Event>(
+    return make_scoped_ptr(
         new GestureEvent(static_cast<const GestureEvent&>(event)));
   }
 
   if (event.IsScrollEvent()) {
-    return scoped_ptr<Event>(
+    return make_scoped_ptr(
         new ScrollEvent(static_cast<const ScrollEvent&>(event)));
   }
 
-  return scoped_ptr<Event>(new Event(event));
+  return make_scoped_ptr(new Event(event));
 }
 
 Event::~Event() {