exo: Synchronize multi-display window positioning

components/exo/display_unittest.cc

 // 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.
 
 #include "ash/public/cpp/shell_window_ids.h"
 #include "components/exo/buffer.h"
 #include "components/exo/display.h"
 #include "components/exo/shared_memory.h"
 #include "components/exo/shell_surface.h"
 #include "components/exo/sub_surface.h"
@@ skipping 129 matching lines @@
 
   // Create two surfaces.
   std::unique_ptr<Surface> surface1 = display->CreateSurface();
   ASSERT_TRUE(surface1);
   std::unique_ptr<Surface> surface2 = display->CreateSurface();
   ASSERT_TRUE(surface2);
 
   // Create a remote shell surface for surface1.
   std::unique_ptr<ShellSurface> shell_surface1 =
       display->CreateRemoteShellSurface(
-          surface1.get(), ash::kShellWindowId_SystemModalContainer);
+          surface1.get(), gfx::Point(),
+          ash::kShellWindowId_SystemModalContainer);
   EXPECT_TRUE(shell_surface1);
 
   // Create a remote shell surface for surface2.
   std::unique_ptr<ShellSurface> shell_surface2 =
-      display->CreateRemoteShellSurface(surface2.get(),
+      display->CreateRemoteShellSurface(surface2.get(), gfx::Point(),
                                         ash::kShellWindowId_DefaultContainer);
   EXPECT_TRUE(shell_surface2);
 }
 
 TEST_F(DisplayTest, CreateSubSurface) {
   std::unique_ptr<Display> display(new Display);
 
   // Create child, parent and toplevel surfaces.
   std::unique_ptr<Surface> child = display->CreateSurface();
   ASSERT_TRUE(child);
@@ skipping 51 matching lines @@
   // Attempting to create a sub surface for parent with grandchild as its parent
   // should fail.
   EXPECT_FALSE(display->CreateSubSurface(parent.get(), grandchild.get()));
 
   // Create a sub surface for parent.
   EXPECT_TRUE(display->CreateSubSurface(parent.get(), toplevel.get()));
 }
 
 }  // namespace
 }  // namespace exo