Connect WebUSB client interface to the devices app

content/renderer/usb/web_usb_device_impl.h

Index: content/renderer/usb/web_usb_device_impl.h
diff --git a/content/renderer/usb/web_usb_device_impl.h b/content/renderer/usb/web_usb_device_impl.h
new file mode 100644
index 0000000000000000000000000000000000000000..7f01d8d758a2d89fedf3801c8272bdc841ebea9e
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+++ b/content/renderer/usb/web_usb_device_impl.h
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+// 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 CONTENT_RENDERER_USB_WEB_USB_DEVICE_IMPL_H_
+#define CONTENT_RENDERER_USB_WEB_USB_DEVICE_IMPL_H_
+
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "device/devices_app/usb/public/interfaces/device.mojom.h"
+#include "device/devices_app/usb/public/interfaces/device_manager.mojom.h"
+#include "mojo/application/public/interfaces/service_provider.mojom.h"
+#include "third_party/WebKit/public/platform/modules/webusb/WebUSBDevice.h"
+#include "third_party/WebKit/public/platform/modules/webusb/WebUSBDeviceInfo.h"
+#include "third_party/WebKit/public/platform/modules/webusb/WebUSBError.h"
+#include "third_party/mojo/src/mojo/public/cpp/bindings/error_handler.h"
+
+namespace mojo {
+class Shell;
+}
+
+namespace content {
+
+class WebUSBDeviceImpl : public blink::WebUSBDevice, public mojo::ErrorHandler {
+ public:
+  WebUSBDeviceImpl(device::usb::DeviceManagerPtr device_manager,
+                   const blink::WebUSBDeviceInfo& device_info);
+  ~WebUSBDeviceImpl() override;
+
+ private:
+  // blink::WebUSBDevice implementation:
+  const blink::WebUSBDeviceInfo& info() const override;
+  void open(blink::WebUSBDeviceOpenCallbacks* callbacks) override;
+  void close(blink::WebUSBDeviceCloseCallbacks* callbacks) override;
+  void setConfiguration(
+      uint8_t configuration_value,
+      blink::WebUSBDeviceSetConfigurationCallbacks* callbacks) override;
+  void claimInterface(
+      uint8_t interface_number,
+      blink::WebUSBDeviceClaimInterfaceCallbacks* callbacks) override;
+  void releaseInterface(
+      uint8_t interface_number,
+      blink::WebUSBDeviceReleaseInterfaceCallbacks* callbacks) override;
+  void setInterface(uint8_t interface_number,
+                    uint8_t alternate_setting,
+                    blink::WebUSBDeviceSetInterfaceAlternateSettingCallbacks*
+                        callbacks) override;
+  void clearHalt(uint8_t endpoint_number,
+                 blink::WebUSBDeviceClearHaltCallbacks* callbacks) override;
+  void controlTransfer(
+      const blink::WebUSBDevice::ControlTransferParameters& parameters,
+      uint8_t* data,
+      size_t data_size,
+      unsigned int timeout,
+      blink::WebUSBDeviceControlTransferCallbacks* callbacks) override;
+  void transfer(blink::WebUSBDevice::TransferDirection direction,
+                uint8_t endpoint_number,
+                uint8_t* data,
+                size_t data_size,
+                unsigned int timeout,
+                blink::WebUSBDeviceBulkTransferCallbacks* callbacks) override;
+  void reset(blink::WebUSBDeviceResetCallbacks* callbacks) override;
+
+  // mojo::ErrorHandler implementation:
+  void OnConnectionError() override;
+
+  device::usb::DeviceManagerPtr device_manager_;
+
+  blink::WebUSBDeviceInfo device_info_;
+  device::usb::DevicePtr device_;
+
+  base::WeakPtrFactory<WebUSBDeviceImpl> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebUSBDeviceImpl);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_USB_WEB_USB_DEVICE_IMPL_H_