Move shell service to toplevel shell namespace

components/mus/public/cpp/lib/window_tree_client_impl.cc

 // Copyright 2014 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 "components/mus/public/cpp/lib/window_tree_client_impl.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 67 matching lines @@
     }
     Window* window = AddWindowToConnection(
         client, !parents.empty() ? parents.back() : NULL, windows[i]);
     if (!last_window)
       root = window;
     last_window = window;
   }
   return root;
 }
 
-WindowTreeConnection* WindowTreeConnection::Create(WindowTreeDelegate* delegate,
-                                                   mojo::Connector* connector) {
+WindowTreeConnection* WindowTreeConnection::Create(
+    WindowTreeDelegate* delegate,
+    shell::Connector* connector) {
   WindowTreeClientImpl* client =
       new WindowTreeClientImpl(delegate, nullptr, nullptr);
   client->ConnectViaWindowTreeFactory(connector);
   return client;
 }
 
 WindowTreeConnection* WindowTreeConnection::Create(
     WindowTreeDelegate* delegate,
     mojo::InterfaceRequest<mojom::WindowTreeClient> request,
     CreateType create_type) {
@@ skipping 57 matching lines @@
   // exception is the window manager and embed roots, which may know about
   // other random windows that it doesn't own.
   // NOTE: we manually delete as we're a friend.
   while (!tracker.windows().empty())
     delete tracker.windows().front();
 
   delegate_->OnConnectionLost(this);
 }
 
 void WindowTreeClientImpl::ConnectViaWindowTreeFactory(
-    mojo::Connector* connector) {
+    shell::Connector* connector) {
   // Clients created with no root shouldn't delete automatically.
   delete_on_no_roots_ = false;
 
   // The connection id doesn't really matter, we use 101 purely for debugging.
   connection_id_ = 101;
 
   mojom::WindowTreeFactoryPtr factory;
   connector->ConnectToInterface("mojo:mus", &factory);
   factory->CreateWindowTree(GetProxy(&tree_ptr_),
                             binding_.CreateInterfacePtrAndBind());
@@ skipping 853 matching lines @@
 
 void WindowTreeClientImpl::SetUnderlaySurfaceOffsetAndExtendedHitArea(
     Window* window,
     const gfx::Vector2d& offset,
     const gfx::Insets& hit_area) {
   window_manager_internal_client_->SetUnderlaySurfaceOffsetAndExtendedHitArea(
       server_id(window), offset.x(), offset.y(), mojo::Insets::From(hit_area));
 }
 
 }  // namespace mus