Disable cloud policy for extensions by default.

chrome/browser/policy/cloud/cloud_policy_manager.cc

Index: chrome/browser/policy/cloud/cloud_policy_manager.cc
diff --git a/chrome/browser/policy/cloud/cloud_policy_manager.cc b/chrome/browser/policy/cloud/cloud_policy_manager.cc
index f02b4ab276c2707823ef3651498e5998408d66d8..e3a01a96599ddf3146582cd527f4d119b2b40ee5 100644
--- a/chrome/browser/policy/cloud/cloud_policy_manager.cc
+++ b/chrome/browser/policy/cloud/cloud_policy_manager.cc
@@ -110,8 +110,8 @@ void CloudPolicyManager::CreateComponentCloudPolicyService(
   // Called at most once.
   DCHECK(!component_policy_service_);
 
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kDisableComponentCloudPolicy) ||
+  if (!CommandLine::ForCurrentProcess()->HasSwitch(
+           switches::kEnableComponentCloudPolicy) ||
       policy_cache_path.empty()) {
     return;
   }