exo: Synchronize multi-display window positioning

components/exo/display.h

 // Copyright 2015 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.
 
 #ifndef COMPONENTS_EXO_DISPLAY_H_
 #define COMPONENTS_EXO_DISPLAY_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 56 matching lines @@
   std::unique_ptr<ShellSurface> CreateShellSurface(Surface* surface);
 
   // Creates a popup shell surface for an existing surface at |position| and
   // with |parent|. |position| is in |parent| surface local coordinates.
   std::unique_ptr<ShellSurface> CreatePopupShellSurface(
       Surface* surface,
       ShellSurface* parent,
       const gfx::Point& position);
 
   // Creates a remote shell surface for an existing surface using |container|.
-  std::unique_ptr<ShellSurface> CreateRemoteShellSurface(Surface* surface,
-                                                         int container);
+  std::unique_ptr<ShellSurface> CreateRemoteShellSurface(
+      Surface* surface,
+      const gfx::Point& origin,
+      int container);
 
   // Creates a sub-surface for an existing surface. The sub-surface will be
   // a child of |parent|.
   std::unique_ptr<SubSurface> CreateSubSurface(Surface* surface,
                                                Surface* parent);
 
   // Creates a notification surface for a surface and notification id.
   std::unique_ptr<NotificationSurface> CreateNotificationSurface(
       Surface* surface,
       const std::string& notification_id);
 
  private:
   NotificationSurfaceManager* const notification_surface_manager_;
 
 #if defined(USE_OZONE)
   std::vector<gfx::BufferFormat> overlay_formats_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(Display);
 };
 
 }  // namespace exo
 
 #endif  // COMPONENTS_EXO_DISPLAY_H_