Enable fetching cloud policy for extensions by default.

chrome/browser/policy/cloud/component_cloud_policy_browsertest.cc

 // 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 <string>
 
 #include "base/base64.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
@@ skipping 107 matching lines @@
 
   virtual void SetUpInProcessBrowserTestFixture() OVERRIDE {
     test_server_.RegisterClient(kDMToken, kDeviceID);
     EXPECT_TRUE(test_server_.UpdatePolicyData(
         dm_protocol::kChromeExtensionPolicyType, kTestExtension, kTestPolicy));
     ASSERT_TRUE(test_server_.Start());
 
     std::string url = test_server_.GetServiceURL().spec();
     CommandLine* command_line = CommandLine::ForCurrentProcess();
     command_line->AppendSwitchASCII(switches::kDeviceManagementUrl, url);
-    command_line->AppendSwitch(switches::kEnableComponentCloudPolicy);
 
     ExtensionBrowserTest::SetUpInProcessBrowserTestFixture();
   }
 
   virtual void SetUpOnMainThread() OVERRIDE {
     ASSERT_TRUE(PolicyServiceIsEmpty(g_browser_process->policy_service()))
         << "Pre-existing policies in this machine will make this test fail.";
 
     // Install the initial extension.
     ExtensionTestMessageListener ready_listener("ready", true);
@@ skipping 195 matching lines @@
   ExtensionTestMessageListener signin_policy_listener(kTestPolicyJSON, true);
   event_listener2.Reply("get-policy-Name");
   EXPECT_TRUE(signin_policy_listener.WaitUntilSatisfied());
 
   // And the cache is back.
   EXPECT_TRUE(base::PathExists(cache_path));
 }
 #endif
 
 }  // namespace policy