Introduce WM_POINTER to Handle pointer events with pen type

ui/views/win/hwnd_message_handler.h

Index: ui/views/win/hwnd_message_handler.h
diff --git a/ui/views/win/hwnd_message_handler.h b/ui/views/win/hwnd_message_handler.h
index e0a804cb8c9856ab729936fb19489f13d1002ad6..3995f3cce811beb4ab0775cb95ed2b829d8e9993 100644
--- a/ui/views/win/hwnd_message_handler.h
+++ b/ui/views/win/hwnd_message_handler.h
@@ -235,7 +235,10 @@ class VIEWS_EXPORT HWNDMessageHandler :
                              WPARAM w_param,
                              LPARAM l_param,
                              bool* handled) override;
-
+  LRESULT HandlePointerMessage(unsigned int message,
+                               WPARAM w_param,
+                               LPARAM l_param,
+                               bool* handled) override;
   LRESULT HandleScrollMessage(unsigned int message,
                               WPARAM w_param,
                               LPARAM l_param,
@@ -358,6 +361,11 @@ class VIEWS_EXPORT HWNDMessageHandler :
 
     // Pointer events.
     CR_MESSAGE_HANDLER_EX(WM_POINTERACTIVATE, OnPointerActivate)
+    CR_MESSAGE_HANDLER_EX(WM_POINTERDOWN, OnPointerEvent)
+    CR_MESSAGE_HANDLER_EX(WM_POINTERUP, OnPointerEvent)
+    CR_MESSAGE_HANDLER_EX(WM_POINTERUPDATE, OnPointerEvent)
+    CR_MESSAGE_HANDLER_EX(WM_POINTERENTER, OnPointerEvent)
+    CR_MESSAGE_HANDLER_EX(WM_POINTERLEAVE, OnPointerEvent)
 
     // Key events.
     CR_MESSAGE_HANDLER_EX(WM_KEYDOWN, OnKeyEvent)
@@ -423,7 +431,6 @@ class VIEWS_EXPORT HWNDMessageHandler :
     CR_MSG_WM_SIZE(OnSize)
     CR_MSG_WM_SYSCOMMAND(OnSysCommand)
     CR_MSG_WM_THEMECHANGED(OnThemeChanged)
-    CR_MSG_WM_TIMECHANGE(OnTimeChange)
     CR_MSG_WM_WINDOWPOSCHANGED(OnWindowPosChanged)
     CR_MSG_WM_WINDOWPOSCHANGING(OnWindowPosChanging)
   CR_END_MSG_MAP()
@@ -460,6 +467,7 @@ class VIEWS_EXPORT HWNDMessageHandler :
   LRESULT OnMouseActivate(UINT message, WPARAM w_param, LPARAM l_param);
   LRESULT OnMouseRange(UINT message, WPARAM w_param, LPARAM l_param);
   LRESULT OnPointerActivate(UINT message, WPARAM w_param, LPARAM l_param);
+  LRESULT OnPointerEvent(UINT message, WPARAM w_param, LPARAM l_param);
   void OnMove(const gfx::Point& point);
   void OnMoving(UINT param, const RECT* new_bounds);
   LRESULT OnNCActivate(UINT message, WPARAM w_param, LPARAM l_param);
@@ -481,7 +489,6 @@ class VIEWS_EXPORT HWNDMessageHandler :
   void OnSize(UINT param, const gfx::Size& size);
   void OnSysCommand(UINT notification_code, const gfx::Point& point);
   void OnThemeChanged();
-  void OnTimeChange();
   LRESULT OnTouchEvent(UINT message, WPARAM w_param, LPARAM l_param);
   void OnWindowPosChanging(WINDOWPOS* window_pos);
   void OnWindowPosChanged(WINDOWPOS* window_pos);
@@ -697,6 +704,8 @@ class VIEWS_EXPORT HWNDMessageHandler :
   // fullscreen window which lost activation. Defaults to false.
   bool background_fullscreen_hack_;
 
+  bool is_pointer_in_range_;
+
   // This is a map of the HMONITOR to full screeen window instance. It is safe
   // to keep a raw pointer to the HWNDMessageHandler instance as we track the
   // window destruction and ensure that the map is cleaned up.