Move some dependencies of ExtensionService down to extensions.

chrome/browser/extensions/management_policy.cc

-// Copyright (c) 2012 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/extensions/management_policy.h"
-
-namespace extensions {
-
-namespace {
-
-void GetExtensionNameAndId(const Extension* extension,
-                           std::string* name,
-                           std::string* id) {
-  // The extension may be NULL in testing.
-  *id = extension ? extension->id() : "[test]";
-  *name = extension ? extension->name() : "test";
-}
-
-}  // namespace
-
-ManagementPolicy::ManagementPolicy() {
-}
-
-ManagementPolicy::~ManagementPolicy() {
-}
-
-bool ManagementPolicy::Provider::UserMayLoad(const Extension* extension,
-                                             string16* error) const {
-  return true;
-}
-
-bool ManagementPolicy::Provider::UserMayModifySettings(
-    const Extension* extension, string16* error) const {
-  return true;
-}
-
-bool ManagementPolicy::Provider::MustRemainEnabled(const Extension* extension,
-                                                   string16* error) const {
-  return false;
-}
-
-bool ManagementPolicy::Provider::MustRemainDisabled(
-    const Extension* extension,
-    Extension::DisableReason* reason,
-    string16* error) const {
-  return false;
-}
-
-void ManagementPolicy::RegisterProvider(Provider* provider) {
-  providers_.insert(provider);
-}
-
-void ManagementPolicy::UnregisterProvider(Provider* provider) {
-  providers_.erase(provider);
-}
-
-bool ManagementPolicy::UserMayLoad(const Extension* extension,
-                                   string16* error) const {
-  return ApplyToProviderList(&Provider::UserMayLoad, "Installation",
-                             true, extension, error);
-}
-
-bool ManagementPolicy::UserMayModifySettings(const Extension* extension,
-                                             string16* error) const {
-  return ApplyToProviderList(&Provider::UserMayModifySettings, "Modification",
-                             true, extension, error);
-}
-
-bool ManagementPolicy::MustRemainEnabled(const Extension* extension,
-                                         string16* error) const {
-  return ApplyToProviderList(&Provider::MustRemainEnabled, "Disabling",
-                             false, extension, error);
-}
-
-bool ManagementPolicy::MustRemainDisabled(const Extension* extension,
-                                          Extension::DisableReason* reason,
-                                          string16* error) const {
-  for (ProviderList::const_iterator it = providers_.begin();
-       it != providers_.end(); ++it)
-    if ((*it)->MustRemainDisabled(extension, reason, error))
-      return true;
-
-  return false;
-}
-
-void ManagementPolicy::UnregisterAllProviders() {
-  providers_.clear();
-}
-
-int ManagementPolicy::GetNumProviders() const {
-  return providers_.size();
-}
-
-bool ManagementPolicy::ApplyToProviderList(ProviderFunction function,
-                                           const char* debug_operation_name,
-                                           bool normal_result,
-                                           const Extension* extension,
-                                           string16* error) const {
-  for (ProviderList::const_iterator it = providers_.begin();
-       it != providers_.end(); ++it) {
-    const Provider* provider = *it;
-    bool result = (provider->*function)(extension, error);
-    if (result != normal_result) {
-      std::string id;
-      std::string name;
-      GetExtensionNameAndId(extension, &name, &id);
-      DVLOG(1) << debug_operation_name << " of extension " << name
-               << " (" << id << ")"
-               << " prohibited by " << provider->GetDebugPolicyProviderName();
-      return !normal_result;
-    }
-  }
-  return normal_result;
-}
-
-}  // namespace extensions