MacViews: Implement basic NSEvent -> ui::Event conversion for Mac

ui/events/event.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 UI_EVENTS_EVENT_H_
 #define UI_EVENTS_EVENT_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/event_types.h"
@@ skipping 201 matching lines @@
 
   void set_time_stamp(const base::TimeDelta& time_stamp) {
     time_stamp_ = time_stamp;
   }
 
   void set_name(const std::string& name) { name_ = name; }
 
  private:
   friend class EventTestApi;
 
-  // Safely initializes the native event members of this class.
-  void Init();
-  void InitWithNativeEvent(const base::NativeEvent& native_event);
-
   EventType type_;
   std::string name_;
   base::TimeDelta time_stamp_;
   LatencyInfo latency_;
   int flags_;
   base::NativeEvent native_event_;
   bool delete_native_event_;
   bool cancelable_;
   EventTarget* target_;
   EventPhase phase_;
@@ skipping 456 matching lines @@
   // The set of indices of ones in the binary representation of
   // touch_ids_bitfield_ is the set of touch_ids associate with this gesture.
   // This value is stored as a bitfield because the number of touch ids varies,
   // but we currently don't need more than 32 touches at a time.
   const unsigned int touch_ids_bitfield_;
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_EVENT_H_