Extracted UsbDeviceHandle as interface.

extensions/browser/api/usb/usb_apitest.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 "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/ui/browser.h"
 #include "components/usb_service/usb_service.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/test/test_utils.h"
 #include "extensions/browser/api/usb/usb_api.h"
@@ skipping 66 matching lines @@
                void(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));
 
   MOCK_METHOD0(ResetDevice, bool());
+  MOCK_METHOD1(ClaimInterface, bool(const int interface_number));
+  MOCK_METHOD1(ReleaseInterface, bool(const int interface_number));
+  MOCK_METHOD2(SetInterfaceAlternateSetting,
+               bool(const int interface_number, const int alternate_setting));
+  MOCK_METHOD1(GetSerial, bool(base::string16* serial));
+
+  virtual scoped_refptr<UsbDevice> GetDevice() const OVERRIDE {
+    return device_;
+  }
 
   void set_device(UsbDevice* device) { device_ = device; }
 
  protected:
+  UsbDevice* device_;
+
   virtual ~MockUsbDeviceHandle() {}
 };
 
 class MockUsbConfigDescriptor : public UsbConfigDescriptor {
  public:
   MOCK_CONST_METHOD0(GetNumInterfaces, size_t());
   MOCK_CONST_METHOD1(GetInterface,
                      scoped_refptr<const UsbInterfaceDescriptor>(size_t index));
 
  protected:
@@ skipping 168 matching lines @@
       .WillOnce(
           InvokeUsbTransferCallback<5>(usb_service::USB_TRANSFER_TIMEOUT));
   EXPECT_CALL(*mock_device_handle_.get(), Close()).Times(AnyNumber());
   ASSERT_TRUE(RunExtensionTest("usb/transfer_failure"));
 }
 
 IN_PROC_BROWSER_TEST_F(UsbApiTest, InvalidLengthTransfer) {
   EXPECT_CALL(*mock_device_handle_.get(), Close()).Times(AnyNumber());
   ASSERT_TRUE(RunExtensionTest("usb/invalid_length_transfer"));
 }