Data type conversion between extensions API and Cast API

chrome/browser/extensions/webrtc_cast_apitest.cc

 // Copyright 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 "base/command_line.h"
 #include "chrome/browser/extensions/extension_apitest.h"
+#include "chrome/common/chrome_switches.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace extensions {
 
 class WebrtcCastApiTest : public ExtensionApiTest {
+  virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
+    ExtensionApiTest::SetUpCommandLine(command_line);
+    command_line->AppendSwitchASCII(
+        switches::kWhitelistedExtensionID,
+        "ddchlicdkolnonkihahngkmmmjnjlkkf");
+  }
 };
 
 // Test running the test extension for Cast Mirroring API.
 IN_PROC_BROWSER_TEST_F(WebrtcCastApiTest, Basics) {
   ASSERT_TRUE(RunExtensionSubtest("webrtc_cast", "basics.html"));
 }
 
 }  // namespace extensions