Add chrome.usb.listInterfaces API

chrome/browser/extensions/api/usb/usb_manual_apitest.cc

Index: chrome/browser/extensions/api/usb/usb_manual_apitest.cc
diff --git a/chrome/browser/extensions/api/usb/usb_manual_apitest.cc b/chrome/browser/extensions/api/usb/usb_manual_apitest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..9d020115c7a0f4dd179ce895494e0ef8f6b94db7
--- /dev/null
+++ b/chrome/browser/extensions/api/usb/usb_manual_apitest.cc
@@ -0,0 +1,25 @@
+// Copyright (c) 2013 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/api/permissions/permissions_api.h"
+#include "chrome/browser/extensions/extension_apitest.h"
+#include "chrome/common/chrome_switches.h"
+
+namespace {
+
+class UsbManualApiTest : public ExtensionApiTest {
+ public:
+  virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
+    ExtensionApiTest::SetUpCommandLine(command_line);
+    command_line->AppendSwitch(switches::kEnableExperimentalExtensionApis);
+  }
+};
+
+}  // namespace
+
+IN_PROC_BROWSER_TEST_F(UsbManualApiTest, MANUAL_ListInterfaces) {
+  PermissionsRequestFunction::SetIgnoreUserGestureForTests(true);

[Bei Zhang, 2013/05/16 17:46:42]

I think you need to change this to extensions::PermissionsRequestFunction to
compile. The ninja target name is 'browser_tests'. I'm not quite sure if make
has the same target name.

+  PermissionsRequestFunction::SetAutoConfirmForTests(true);
+  ASSERT_TRUE(RunExtensionTest("usb_manual/list_interfaces"));
+}