Reland: Introduce the devices Mojo app

device/core/device_client.h

 // 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.
 
 #ifndef DEVICE_CORE_DEVICE_CLIENT_H_
 #define DEVICE_CORE_DEVICE_CLIENT_H_
 
 #include "base/macros.h"
 #include "third_party/mojo/src/mojo/public/cpp/bindings/interface_request.h"
 
@@ skipping 16 matching lines @@
 
   // Destruction clears the single instance.
   virtual ~DeviceClient();
 
   // Returns the single instance of |this|.
   static DeviceClient* Get();
 
   // Returns the UsbService instance for this embedder.
   virtual UsbService* GetUsbService();
 
-  // Connects a USB DeviceManager client to a concrete implementation. If
-  // no such implementation is available the request is dropped.
-  virtual void ConnectToUSBDeviceManager(
-      mojo::InterfaceRequest<usb::DeviceManager> request);
-
   // Returns the HidService instance for this embedder.
   virtual HidService* GetHidService();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DeviceClient);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_CORE_DEVICE_CLIENT_H_