Update GCDPrivate API permissions and fix tests

chrome/browser/extensions/api/gcd_private/gcd_private_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 "base/bind.h"
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "chrome/browser/extensions/api/gcd_private/gcd_private_api.h"
 #include "chrome/browser/extensions/extension_apitest.h"
@@ skipping 195 matching lines @@
 class GcdPrivateAPITest : public ExtensionApiTest {
  public:
   GcdPrivateAPITest() {
 #if defined(ENABLE_MDNS)
     test_service_discovery_client_ =
         new local_discovery::TestServiceDiscoveryClient();
     test_service_discovery_client_->Start();
 #endif  // ENABLE_MDNS
   }
 
+  virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
+    ExtensionApiTest::SetUpCommandLine(command_line);
+    command_line->AppendSwitchASCII(
+        extensions::switches::kWhitelistedExtensionID,
+        "ddchlicdkolnonkihahngkmmmjnjlkkf");
+  }
+
  protected:
   FakeGCDApiFlowFactory api_flow_factory_;
 
 #if defined(ENABLE_MDNS)
   scoped_refptr<local_discovery::TestServiceDiscoveryClient>
       test_service_discovery_client_;
 #endif  // ENABLE_MDNS
 };
 
 IN_PROC_BROWSER_TEST_F(GcdPrivateAPITest, GetCloudList) {
@@ skipping 52 matching lines @@
   EXPECT_CALL(*test_service_discovery_client_,
               OnSendTo(std::string(reinterpret_cast<const char*>(kQueryPacket),
                                    sizeof(kQueryPacket)))).Times(2);
 #endif
   EXPECT_TRUE(RunExtensionSubtest("gcd_private/api", "send_query.html"));
 }
 
 #endif  // ENABLE_MDNS
 
 }  // namespace