Remove extra call to UsbDeviceHandle::Close in chrome.usb.closeDevice.

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 "content/public/browser/browser_thread.h"
 #include "content/public/test/test_utils.h"
 #include "device/usb/usb_service.h"
 #include "extensions/browser/api/usb/usb_api.h"
 #include "extensions/shell/test/shell_apitest.h"
@@ skipping 182 matching lines @@
 
  protected:
   scoped_refptr<MockUsbDeviceHandle> mock_device_handle_;
   scoped_refptr<MockUsbDevice> mock_device_;
   MockUsbService* mock_service_;
 };
 
 }  // namespace
 
 IN_PROC_BROWSER_TEST_F(UsbApiTest, DeviceHandling) {
-  EXPECT_CALL(*mock_device_handle_.get(), Close()).Times(4);
+  EXPECT_CALL(*mock_device_handle_.get(), Close()).Times(2);
   ASSERT_TRUE(RunAppTest("api_test/usb/device_handling"));
 }
 
 IN_PROC_BROWSER_TEST_F(UsbApiTest, ResetDevice) {
   EXPECT_CALL(*mock_device_handle_.get(), Close()).Times(2);
   EXPECT_CALL(*mock_device_handle_.get(), ResetDevice())
       .WillOnce(Return(true))
       .WillOnce(Return(false));
   EXPECT_CALL(*mock_device_handle_.get(),
               InterruptTransfer(device::USB_DIRECTION_OUTBOUND, 2, _, 1, _, _))
@@ skipping 101 matching lines @@
       base::Bind(&MockUsbService::NotifyDeviceRemoved,
                  base::Unretained(mock_service_), mock_device_),
       run_loop.QuitClosure());
   run_loop.Run();
 
   ASSERT_TRUE(result_listener.WaitUntilSatisfied());
   ASSERT_EQ("success", result_listener.message());
 }
 
 }  // namespace extensions