Enable cloud policy by default.

chrome/browser/policy/user_policy_signin_service.cc

Index: chrome/browser/policy/user_policy_signin_service.cc
diff --git a/chrome/browser/policy/user_policy_signin_service.cc b/chrome/browser/policy/user_policy_signin_service.cc
index a56644f5d577a1d5473050d92d025d7bd9ab1f91..d4b5075d3d53076d3613fdd928a80acc5dec9948 100644
--- a/chrome/browser/policy/user_policy_signin_service.cc
+++ b/chrome/browser/policy/user_policy_signin_service.cc
@@ -48,7 +48,7 @@ UserPolicySigninService::UserPolicySigninService(
       profile_(profile),
       pending_fetch_(false) {
 
-  if (!profile_->GetPrefs()->GetBoolean(prefs::kLoadCloudPolicyOnSignin))
+  if (profile_->GetPrefs()->GetBoolean(prefs::kDisableCloudPolicyOnSignin))
     return;
 
   // Initialize/shutdown the UserCloudPolicyManager when the user signs out.
@@ -138,6 +138,13 @@ void UserPolicySigninService::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
+  // If using a TestingProfile with no SigninManager or UserCloudPolicyManager,
+  // skip initialization.
+  if (!GetManager() || !SigninManagerFactory::GetForProfile(profile_)) {
+    DVLOG(1) << "Skipping initialization for tests due to missing components.";
+    return;
+  }
+
   switch (type) {
     case chrome::NOTIFICATION_GOOGLE_SIGNED_OUT:
       ShutdownUserCloudPolicyManager();
@@ -177,7 +184,7 @@ void UserPolicySigninService::Observe(
 }
 
 bool UserPolicySigninService::ShouldLoadPolicyForSignedInUser() {
-  if (!profile_->GetPrefs()->GetBoolean(prefs::kLoadCloudPolicyOnSignin))
+  if (profile_->GetPrefs()->GetBoolean(prefs::kDisableCloudPolicyOnSignin))
     return false; // Cloud policy is disabled.
 
   const std::string& username = SigninManagerFactory::GetForProfile(profile_)->