Move more message handlers from NativeWidgetWin to HWNDMessageHandler.

ui/views/widget/hwnd_message_handler_delegate.h

Index: ui/views/widget/hwnd_message_handler_delegate.h
===================================================================
--- ui/views/widget/hwnd_message_handler_delegate.h	(revision 152370)
+++ ui/views/widget/hwnd_message_handler_delegate.h	(working copy)
@@ -7,6 +7,12 @@
 
 #include "ui/views/views_export.h"
 
+namespace gfx {
+class Path;
+class Point;
+class Size;
+}
+
 namespace views {
 
 class InputMethod;
@@ -22,6 +28,13 @@
   //             to avoid confusion.
   virtual bool IsUsingCustomFrame() const = 0;
 
+  virtual bool CanResize() const = 0;
+  virtual bool CanMaximize() const = 0;
+  virtual bool CanActivate() const = 0;
+
+  virtual int GetNonClientComponent(const gfx::Point& point) const = 0;
+  virtual void GetWindowMask(const gfx::Size& size, gfx::Path* mask) = 0;
+
   virtual InputMethod* GetInputMethod() = 0;
 
   // TODO(beng): Investigate migrating these methods to On* prefixes once
@@ -61,6 +74,12 @@
   // Called when the window's position changed.
   virtual void HandleMove() = 0;
 
+  // Called when focus shifted to this HWND from |last_focused_window|.
+  virtual void HandleNativeFocus(HWND last_focused_window) = 0;
+
+  // Called when focus shifted from the HWND to a different window.
+  virtual void HandleNativeBlur(HWND focused_window) = 0;
+
   // This is provided for methods that need to call private methods on NWW.
   // TODO(beng): should be removed once HWNDMessageHandler is the WindowImpl.
   virtual NativeWidgetWin* AsNativeWidgetWin() = 0;