Revert "Set default multi-profile policy to not-allowed."

No longer need this change on trunk now that it has been tested and
merged to M37 branch.

This reverts commit fd85a93b.

BUG=405983
TBR=bartfab@chromium.org

Review URL: https://codereview.chromium.org/499923002

Cr-Commit-Position: refs/heads/master@{#291625}

chrome/browser/chromeos/policy/user_cloud_policy_manager_chromeos.cc

@@ -280,13 +280,13 @@ void UserCloudPolicyManagerChromeOS::OnComponentCloudPolicyUpdated() {
 void UserCloudPolicyManagerChromeOS::GetChromePolicy(PolicyMap* policy_map) {
   CloudPolicyManager::GetChromePolicy(policy_map);
 
-  // Default multi-profile behavior for managed accounts to not-allowed.
+  // Default multi-profile behavior for managed accounts to primary-only.
   if (store()->has_policy() &&
       !policy_map->Get(key::kChromeOsMultiProfileUserBehavior)) {
     policy_map->Set(key::kChromeOsMultiProfileUserBehavior,
                     POLICY_LEVEL_MANDATORY,
                     POLICY_SCOPE_USER,
-                    new base::StringValue("not-allowed"),
+                    new base::StringValue("primary-only"),
                     NULL);
   }
 }

chrome/browser/chromeos/policy/user_cloud_policy_manager_chromeos_unittest.cc

@@ -113,7 +113,7 @@ class UserCloudPolicyManagerChromeOSTest : public testing::Test {
                     NULL);
     policy_map_.Set(key::kChromeOsMultiProfileUserBehavior,
                     POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER,
-                    new base::StringValue("not-allowed"),
+                    new base::StringValue("primary-only"),
                     NULL);
     expected_bundle_.Get(PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()))
         .CopyFrom(policy_map_);

chrome/browser/policy/cloud/cloud_policy_browsertest.cc

@@ -140,7 +140,7 @@ void GetExpectedDefaultPolicy(PolicyMap* policy_map) {
   policy_map->Set(key::kChromeOsMultiProfileUserBehavior,
                   POLICY_LEVEL_MANDATORY,
                   POLICY_SCOPE_USER,
-                  new base::StringValue("not-allowed"),
+                  new base::StringValue("primary-only"),
                   NULL);
 #endif
 }
@@ -176,7 +176,7 @@ void GetExpectedTestPolicy(PolicyMap* expected, const char* homepage) {
   expected->Set(key::kChromeOsMultiProfileUserBehavior,
                 POLICY_LEVEL_MANDATORY,
                 POLICY_SCOPE_USER,
-                new base::StringValue("not-allowed"),
+                new base::StringValue("primary-only"),
                 NULL);
 #endif
 }