Fix initial hiding and centering cursor on Ozone

ui/aura/env.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_AURA_ENV_H_
 #define UI_AURA_ENV_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "base/supports_user_data.h"
@@ skipping 24 matching lines @@
   // |create_event_source| is true a PlatformEventSource is created.
   // TODO(sky): nuke |create_event_source|. Only necessary while mojo's
   // nativeviewportservice lives in the same process as the viewmanager.
   static void CreateInstance(bool create_event_source);
   static Env* GetInstance();
   static void DeleteInstance();
 
   void AddObserver(EnvObserver* observer);
   void RemoveObserver(EnvObserver* observer);
 
+  bool mouse_moved() const { return mouse_moved_; }
+
   int mouse_button_flags() const { return mouse_button_flags_; }
   void set_mouse_button_flags(int mouse_button_flags) {
     mouse_button_flags_ = mouse_button_flags;
   }
   // Returns true if a mouse button is down. This may query the native OS,
   // otherwise it uses |mouse_button_flags_|.
   bool IsMouseButtonDown() const;
 
   // Gets/sets the last mouse location seen in a mouse event in the screen
   // coordinates.
   const gfx::Point& last_mouse_location() const { return last_mouse_location_; }
-  void set_last_mouse_location(const gfx::Point& last_mouse_location) {
-    last_mouse_location_ = last_mouse_location;
-  }
+  void SetLastMouseLocation(const gfx::Point& last_mouse_location);
 
   // Whether any touch device is currently down.
   bool is_touch_down() const { return is_touch_down_; }
   void set_touch_down(bool value) { is_touch_down_ = value; }
 
   void set_context_factory(ui::ContextFactory* context_factory) {
     context_factory_ = context_factory;
   }
   ui::ContextFactory* context_factory() { return context_factory_; }
 
@@ skipping 18 matching lines @@
   void NotifyHostActivated(WindowTreeHost* host);
 
   // Overridden from ui::EventTarget:
   bool CanAcceptEvent(const ui::Event& event) override;
   ui::EventTarget* GetParentTarget() override;
   scoped_ptr<ui::EventTargetIterator> GetChildIterator() const override;
   ui::EventTargeter* GetEventTargeter() override;
 
   ObserverList<EnvObserver> observers_;
 
+  // Whether the mouse was moved from its initial location.
+  bool mouse_moved_;
+
   int mouse_button_flags_;
   // Location of last mouse event, in screen coordinates.
   gfx::Point last_mouse_location_;
   bool is_touch_down_;
 
   scoped_ptr<InputStateLookup> input_state_lookup_;
   scoped_ptr<ui::PlatformEventSource> event_source_;
 
   ui::ContextFactory* context_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Env);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_ENV_H_