Add minimum version to extension management

chrome/browser/extensions/standard_management_policy_provider.cc

 // Copyright 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/standard_management_policy_provider.h"
 
 #include <string>
 
 #include "base/logging.h"
 #include "base/strings/string16.h"
@@ skipping 120 matching lines @@
 }
 
 bool StandardManagementPolicyProvider::MustRemainEnabled(
     const Extension* extension,
     base::string16* error) const {
   return !AdminPolicyIsModifiable(extension, error) ||
          (extension->location() == extensions::Manifest::EXTERNAL_COMPONENT &&
           ExternalComponentLoader::IsModifiable(extension));
 }
 
+bool StandardManagementPolicyProvider::MustRemainDisabled(
+    const Extension* extension,
+    Extension::DisableReason* reason,
+    base::string16* error) const {
+  std::string required_version;
+  if (!settings_->CheckMinimumVersion(extension, &required_version)) {
+    if (reason)
+      *reason = Extension::DISABLE_UPDATE_REQUIRED_BY_POLICY;
+    if (error) {
+      *error = l10n_util::GetStringFUTF16(
+          IDS_EXTENSION_DISABLED_UPDATE_REQUIRED_BY_POLICY,
+          base::UTF8ToUTF16(extension->name()),
+          base::ASCIIToUTF16(required_version));
+    }
+    return true;
+  }
+  return false;
+}
+
 bool StandardManagementPolicyProvider::MustRemainInstalled(
     const Extension* extension,
     base::string16* error) const {
   ExtensionManagement::InstallationMode mode =
       settings_->GetInstallationMode(extension);
   // Disallow removing of recommended extension, to avoid re-install it
   // again while policy is reload. But disabling of recommended extension is
   // allowed.
   if (mode == ExtensionManagement::INSTALLATION_FORCED ||
       mode == ExtensionManagement::INSTALLATION_RECOMMENDED) {
     if (error) {
       *error = l10n_util::GetStringFUTF16(
           IDS_EXTENSION_CANT_UNINSTALL_POLICY_REQUIRED,
           base::UTF8ToUTF16(extension->name()));
     }
     return true;
   }
   return false;
 }
 
 }  // namespace extensions