Eliminate mojo::Shell client lib class

components/mus/ws/window_tree_unittest.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 <stdint.h>
 
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
@@ skipping 334 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(TestDisplayManager);
 };
 
 // Factory that dispenses TestDisplayManagers.
 class TestDisplayManagerFactory : public DisplayManagerFactory {
  public:
   explicit TestDisplayManagerFactory(int32_t* cursor_id_storage)
       : cursor_id_storage_(cursor_id_storage) {}
   ~TestDisplayManagerFactory() {}
   DisplayManager* CreateDisplayManager(
-      mojo::Shell* shell,
+      mojo::Connector* connector,
       const scoped_refptr<GpuState>& gpu_state,
       const scoped_refptr<mus::SurfacesState>& surfaces_state) override {
     return new TestDisplayManager(cursor_id_storage_);
   }
 
  private:
   int32_t* cursor_id_storage_;
 
   DISALLOW_COPY_AND_ASSIGN(TestDisplayManagerFactory);
 };
@@ skipping 574 matching lines @@
   mojom_window_tree->ReleaseCapture(++change_id,
                                     WindowIdToTransportId(root_window->id()));
   EXPECT_EQ(window, host->GetCaptureWindow());
   mojom_window_tree->ReleaseCapture(++change_id,
                                     WindowIdToTransportId(window->id()));
   EXPECT_EQ(nullptr, host->GetCaptureWindow());
 }
 
 }  // namespace ws
 }  // namespace mus