Add chrome.usb.getConfiguration and expose extra descriptors.

extensions/browser/api/usb/usb_api.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 EXTENSIONS_BROWSER_API_USB_USB_API_H_
 #define EXTENSIONS_BROWSER_API_USB_USB_API_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 126 matching lines @@
   virtual void AsyncWorkStart() OVERRIDE;
 
  protected:
   virtual ~UsbOpenDeviceFunction();
 
  private:
   scoped_refptr<device::UsbDeviceHandle> handle_;
   scoped_ptr<extensions::core_api::usb::OpenDevice::Params> parameters_;
 };
 
+class UsbGetConfigurationFunction : public UsbAsyncApiFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("usb.getConfiguration", USB_GETCONFIGURATION)
+
+  UsbGetConfigurationFunction();
+
+ protected:
+  virtual ~UsbGetConfigurationFunction();
+
+  virtual bool Prepare() OVERRIDE;
+  virtual void AsyncWorkStart() OVERRIDE;
+
+ private:
+  scoped_ptr<extensions::core_api::usb::GetConfiguration::Params> parameters_;
+};
+
 class UsbListInterfacesFunction : public UsbAsyncApiFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("usb.listInterfaces", USB_LISTINTERFACES)
 
   UsbListInterfacesFunction();
 
  protected:
   virtual ~UsbListInterfacesFunction();
 
   virtual bool Prepare() OVERRIDE;
   virtual void AsyncWorkStart() OVERRIDE;
 
  private:
-  bool ConvertDirectionSafely(const device::UsbEndpointDirection& input,
-                              extensions::core_api::usb::Direction* output);
-  bool ConvertSynchronizationTypeSafely(
-      const device::UsbSynchronizationType& input,
-      extensions::core_api::usb::SynchronizationType* output);
-  bool ConvertTransferTypeSafely(
-      const device::UsbTransferType& input,
-      extensions::core_api::usb::TransferType* output);
-  bool ConvertUsageTypeSafely(const device::UsbUsageType& input,
-                              extensions::core_api::usb::UsageType* output);
-
   scoped_ptr<extensions::core_api::usb::ListInterfaces::Params> parameters_;
 };
 
 class UsbCloseDeviceFunction : public UsbAsyncApiFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("usb.closeDevice", USB_CLOSEDEVICE)
 
   UsbCloseDeviceFunction();
 
  protected:
@@ skipping 131 matching lines @@
 
   virtual bool Prepare() OVERRIDE;
   virtual void AsyncWorkStart() OVERRIDE;
 
  private:
   scoped_ptr<extensions::core_api::usb::ResetDevice::Params> parameters_;
 };
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_USB_USB_API_H_