Cleanup the policy code after the recent moves into the component.

chrome/browser/policy/policy_transformations.cc

-// Copyright 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 "chrome/browser/policy/policy_transformations.h"
-
-#include "base/memory/scoped_ptr.h"
-#include "base/values.h"
-#include "components/policy/core/common/policy_bundle.h"
-#include "components/policy/core/common/policy_map.h"
-#include "policy/policy_constants.h"
-
-namespace policy {
-
-namespace {
-
-const char* kProxyPolicies[] = {
-  key::kProxyMode,
-  key::kProxyServerMode,
-  key::kProxyServer,
-  key::kProxyPacUrl,
-  key::kProxyBypassList,
-};
-
-void FixDeprecatedPolicies(PolicyMap* policies) {
-  // Proxy settings have been configured by 5 policies that didn't mix well
-  // together, and maps of policies had to take this into account when merging
-  // policy sources. The proxy settings will eventually be configured by a
-  // single Dictionary policy when all providers have support for that. For
-  // now, the individual policies are mapped here to a single Dictionary policy
-  // that the rest of the policy machinery uses.
-
-  // The highest (level, scope) pair for an existing proxy policy is determined
-  // first, and then only policies with those exact attributes are merged.
-  PolicyMap::Entry current_priority;  // Defaults to the lowest priority.
-  scoped_ptr<base::DictionaryValue> proxy_settings(new base::DictionaryValue);
-  for (size_t i = 0; i < arraysize(kProxyPolicies); ++i) {
-    const PolicyMap::Entry* entry = policies->Get(kProxyPolicies[i]);
-    if (entry) {
-      if (entry->has_higher_priority_than(current_priority)) {
-        proxy_settings->Clear();
-        current_priority = *entry;
-      }
-      if (!entry->has_higher_priority_than(current_priority) &&
-          !current_priority.has_higher_priority_than(*entry)) {
-        proxy_settings->Set(kProxyPolicies[i], entry->value->DeepCopy());
-      }
-      policies->Erase(kProxyPolicies[i]);
-    }
-  }
-  // Sets the new |proxy_settings| if kProxySettings isn't set yet, or if the
-  // new priority is higher.
-  const PolicyMap::Entry* existing = policies->Get(key::kProxySettings);
-  if (!proxy_settings->empty() &&
-      (!existing || current_priority.has_higher_priority_than(*existing))) {
-    policies->Set(key::kProxySettings,
-                  current_priority.level,
-                  current_priority.scope,
-                  proxy_settings.release(),
-                  NULL);
-  }
-}
-
-}  // namespace
-
-void FixDeprecatedPolicies(PolicyBundle* bundle) {
-  FixDeprecatedPolicies(
-      &bundle->Get(PolicyNamespace(POLICY_DOMAIN_CHROME, std::string())));
-}
-
-}  // namespace policy