Usb backend refactor step 2: Separate Usb Device Handle and Usb Device (deprecate)

chrome/browser/extensions/api/usb/usb_device_resource.h

 // Copyright (c) 2012 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 CHROME_BROWSER_EXTENSIONS_API_USB_USB_DEVICE_RESOURCE_H_
 #define CHROME_BROWSER_EXTENSIONS_API_USB_USB_DEVICE_RESOURCE_H_
 
 #include <set>
+#include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/ref_counted.h"
 #include "base/synchronization/lock.h"
 #include "chrome/browser/extensions/api/api_resource.h"
 #include "chrome/browser/extensions/api/api_resource_manager.h"
 #include "chrome/browser/usb/usb_device.h"
 #include "chrome/common/extensions/api/usb.h"
 
 class UsbDevice;
 
 namespace net {
 class IOBuffer;
 }  // namespace net
 
 namespace extensions {
 
 // A UsbDeviceResource is an ApiResource wrapper for a UsbDevice.
+// It will redirect all the requests on the FILE thread if necessary.
 class UsbDeviceResource : public ApiResource {
  public:
   UsbDeviceResource(const std::string& owner_extension_id,
                     scoped_refptr<UsbDevice> device);
   virtual ~UsbDeviceResource();
 
-  scoped_refptr<UsbDevice> device() {
-    return device_;
-  }
+  virtual void Close(const base::Callback<void()>& callback);
+
+  virtual void ListInterfaces(UsbConfigDescriptor* config,
+                              const UsbInterfaceCallback& callback);
+
+  virtual void ClaimInterface(const int interface_number,
+                              const UsbInterfaceCallback& callback);
+
+  virtual void ReleaseInterface(const int interface_number,
+                                const UsbInterfaceCallback& callback);
+
+  virtual void SetInterfaceAlternateSetting(
+      const int interface_number,
+      const int alternate_setting,
+      const UsbInterfaceCallback& callback);
+
+  virtual void ControlTransfer(
+      const UsbEndpointDirection direction,
+      const UsbDevice::TransferRequestType request_type,
+      const UsbDevice::TransferRecipient recipient,
+      const uint8 request,
+      const uint16 value, const uint16 index, net::IOBuffer* buffer,
+      const size_t length, const unsigned int timeout,
+      const UsbTransferCallback& callback);
+
+  virtual void BulkTransfer(const UsbEndpointDirection direction,
+                            const uint8 endpoint, net::IOBuffer* buffer,
+                            const size_t length,
+                            const unsigned int timeout,
+                            const UsbTransferCallback& callback);
+
+  virtual void InterruptTransfer(const UsbEndpointDirection direction,
+                                 const uint8 endpoint, net::IOBuffer* buffer,
+                                 const size_t length,
+                                 const unsigned int timeout,
+                                 const UsbTransferCallback& callback);
+
+  virtual void IsochronousTransfer(const UsbEndpointDirection direction,
+                                   const uint8 endpoint, net::IOBuffer* buffer,
+                                   const size_t length,
+                                   const unsigned int packets,
+                                   const unsigned int packet_length,
+                                   const unsigned int timeout,
+                                   const UsbTransferCallback& callback);
+
+  virtual void ResetDevice(const UsbResetDeviceCallback& callback);
 
  private:
   friend class ApiResourceManager<UsbDeviceResource>;
   static const char* service_name() {
     return "UsbDeviceResourceManager";
   }
 
   scoped_refptr<UsbDevice> device_;
 
   DISALLOW_COPY_AND_ASSIGN(UsbDeviceResource);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_USB_USB_DEVICE_RESOURCE_H_