UsbContextForTest   22 chrome/browser/usb/usb_context_unittest.cc     DISALLOW_COPY_AND_ASSIGN(UsbContextForTest);
UsbContextForTest   43 chrome/browser/usb/usb_context_unittest.cc     scoped_refptr<UsbContextForTest> context(
UsbContextForTest   44 chrome/browser/usb/usb_context_unittest.cc         new UsbContextForTest(platform_context));