aura: Remove WindowTreeHost::QueryMouseLocation().

ui/views/widget/desktop_aura/desktop_window_tree_host_win.cc

Index: ui/views/widget/desktop_aura/desktop_window_tree_host_win.cc
diff --git a/ui/views/widget/desktop_aura/desktop_window_tree_host_win.cc b/ui/views/widget/desktop_aura/desktop_window_tree_host_win.cc
index 16987e910769bf5ab13af0c4bfbe77f522d9646c..6801098f897faffef845c0384d613660acb12d4d 100644
--- a/ui/views/widget/desktop_aura/desktop_window_tree_host_win.cc
+++ b/ui/views/widget/desktop_aura/desktop_window_tree_host_win.cc
@@ -512,20 +512,6 @@ void DesktopWindowTreeHostWin::ReleaseCapture() {
   message_handler_->ReleaseCapture();
 }
 
-bool DesktopWindowTreeHostWin::QueryMouseLocation(gfx::Point* location_return) {
-  aura::client::CursorClient* cursor_client =
-      aura::client::GetCursorClient(window());
-  if (cursor_client && !cursor_client->IsMouseEventsEnabled()) {
-    *location_return = gfx::Point(0, 0);
-    return false;
-  }
-  POINT pt = {0};
-  ::GetCursorPos(&pt);
-  *location_return =
-      gfx::Point(static_cast<int>(pt.x), static_cast<int>(pt.y));
-  return true;
-}
-
 void DesktopWindowTreeHostWin::PostNativeEvent(
     const base::NativeEvent& native_event) {
 }