Get rid of Widget::ConvertPointFromAncestor.

ui/views/widget/native_widget_win.cc

 // Copyright (c) 2011 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.
 
 #include "ui/views/widget/native_widget_win.h"
 
 #include <dwmapi.h>
 #include <shellapi.h>
 
 #include <algorithm>
@@ skipping 973 matching lines @@
 void NativeWidgetWin::ClearNativeFocus() {
   ::SetFocus(GetNativeView());
 }
 
 void NativeWidgetWin::FocusNativeView(gfx::NativeView native_view) {
   // Only reset focus if hwnd is not already focused.
   if (native_view && ::GetFocus() != native_view)
     ::SetFocus(native_view);
 }
 
-bool NativeWidgetWin::ConvertPointFromAncestor(
-    const Widget* ancestor, gfx::Point* point) const {
-  NOTREACHED();
-  return false;
-}
-
 gfx::Rect NativeWidgetWin::GetWorkAreaBoundsInScreen() const {
   return gfx::Screen::GetMonitorWorkAreaNearestWindow(GetNativeView());
 }
 
 void NativeWidgetWin::SetInactiveRenderingDisabled(bool value) {
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // NativeWidgetWin, MessageLoop::Observer implementation:
 
@@ skipping 1498 matching lines @@
   return (GetKeyState(VK_LBUTTON) & 0x80) ||
     (GetKeyState(VK_RBUTTON) & 0x80) ||
     (GetKeyState(VK_MBUTTON) & 0x80) ||
     (GetKeyState(VK_XBUTTON1) & 0x80) ||
     (GetKeyState(VK_XBUTTON2) & 0x80);
 }
 
 }  // namespace internal
 
 }  // namespace views