aura: Remove WindowTreeHost::QueryMouseLocation().

ui/views/test/ui_controls_factory_desktop_aurax11.cc

Index: ui/views/test/ui_controls_factory_desktop_aurax11.cc
diff --git a/ui/views/test/ui_controls_factory_desktop_aurax11.cc b/ui/views/test/ui_controls_factory_desktop_aurax11.cc
index d574f6668b4d7a0285e8d3c48005d0c5aa6b3501..4ea9bc8445531e812d84e6cc380344c7a8a51732 100644
--- a/ui/views/test/ui_controls_factory_desktop_aurax11.cc
+++ b/ui/views/test/ui_controls_factory_desktop_aurax11.cc
@@ -14,6 +14,7 @@
 #include "base/logging.h"
 #include "ui/aura/client/screen_position_client.h"
 #include "ui/aura/env.h"
+#include "ui/aura/test/aura_test_utils.h"
 #include "ui/aura/test/ui_controls_factory_aura.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/base/test/ui_controls_aura.h"
@@ -142,8 +143,9 @@ class UIControlsDesktopX11 : public UIControlsAura {
     }
 
     aura::WindowTreeHost* host = root_window->GetHost();
-    gfx::Point root_current_location;
-    host->QueryMouseLocation(&root_current_location);
+    aura::WindowTreeHostTestApi host_test_api(host);
+    gfx::Point root_current_location =
+        host_test_api.last_cursor_request_position_in_host();
     host->ConvertPointFromHost(&root_current_location);
 
     if (root_location != root_current_location && button_down_mask == 0) {