Improve messaging for shared modules on chrome://extensions

chrome/browser/extensions/extension_service.cc

 // Copyright (c) 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/extensions/extension_service.h"
 
 #include <algorithm>
 #include <iterator>
 #include <set>
 
@@ skipping 94 matching lines @@
 using extensions::SharedModuleService;
 using extensions::UnloadedExtensionInfo;
 
 namespace errors = extensions::manifest_errors;
 
 namespace {
 
 // Wait this many seconds after an extensions becomes idle before updating it.
 const int kUpdateIdleDelay = 5;
 
-bool IsCWSSharedModule(const Extension* extension) {
-  return extension->from_webstore() &&
-         SharedModuleInfo::IsSharedModule(extension);
-}
-
-class SharedModuleProvider : public extensions::ManagementPolicy::Provider {
- public:
-  SharedModuleProvider() {}
-  virtual ~SharedModuleProvider() {}
-
-  virtual std::string GetDebugPolicyProviderName() const OVERRIDE {
-    return "SharedModuleProvider";
-  }
-
-  virtual bool UserMayModifySettings(const Extension* extension,
-                                     base::string16* error) const OVERRIDE {
-    return !IsCWSSharedModule(extension);
-  }
-
-  virtual bool MustRemainEnabled(const Extension* extension,
-                                 base::string16* error) const OVERRIDE {
-    return IsCWSSharedModule(extension);
-  }
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(SharedModuleProvider);
-};
-
 }  // namespace
 
 // ExtensionService.
 
 void ExtensionService::CheckExternalUninstall(const std::string& id) {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   // Check if the providers know about this extension.
   extensions::ProviderCollection::const_iterator i;
   for (i = external_extension_providers_.begin();
@@ skipping 195 matching lines @@
   error_controller_.reset(
       new extensions::ExtensionErrorController(profile_, is_first_run_));
   external_install_manager_.reset(
       new extensions::ExternalInstallManager(profile_, is_first_run_));
 
 #if defined(ENABLE_EXTENSIONS)
   extension_action_storage_manager_.reset(
       new extensions::ExtensionActionStorageManager(profile_));
 #endif
 
-  shared_module_policy_provider_.reset(new SharedModuleProvider);
-
   // How long is the path to the Extensions directory?
   UMA_HISTOGRAM_CUSTOM_COUNTS("Extensions.ExtensionRootPathLength",
                               install_directory_.value().length(), 0, 500, 100);
 }
 
 const ExtensionSet* ExtensionService::extensions() const {
   return &registry_->enabled_extensions();
 }
 
 extensions::PendingExtensionManager*
@@ skipping 95 matching lines @@
         extension_prefs_->GetAllDelayedInstallInfo());
     UMA_HISTOGRAM_COUNTS_100("Extensions.UpdateOnLoad",
                              delayed_info2->size() - delayed_info->size());
 
     SetReadyAndNotifyListeners();
 
     // TODO(erikkay) this should probably be deferred to a future point
     // rather than running immediately at startup.
     CheckForExternalUpdates();
 
-    system_->management_policy()->RegisterProvider(
-        shared_module_policy_provider_.get());
-
     LoadGreylistFromPrefs();
   }
 
   UMA_HISTOGRAM_TIMES("Extensions.ExtensionServiceInitTime",
                       base::Time::Now() - begin_time);
 }
 
 void ExtensionService::LoadGreylistFromPrefs() {
   scoped_ptr<ExtensionSet> all_extensions =
       registry_->GenerateInstalledExtensionsSet();
@@ skipping 1858 matching lines @@
 }
 
 void ExtensionService::OnProfileDestructionStarted() {
   ExtensionIdSet ids_to_unload = registry_->enabled_extensions().GetIDs();
   for (ExtensionIdSet::iterator it = ids_to_unload.begin();
        it != ids_to_unload.end();
        ++it) {
     UnloadExtension(*it, UnloadedExtensionInfo::REASON_PROFILE_SHUTDOWN);
   }
 }