Warn user in case extension delays network traffic too much.

chrome/browser/extensions/extension_service.cc

 // Copyright (c) 2011 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 <set>
 
 #include "base/basictypes.h"
@@ skipping 585 matching lines @@
           profile->GetPath().AppendASCII(kSettingsDirectoryName)),
       pending_extension_manager_(*ALLOW_THIS_IN_INITIALIZER_LIST(this)),
       install_directory_(install_directory),
       extensions_enabled_(extensions_enabled),
       show_extensions_prompts_(true),
       ready_(false),
       toolbar_model_(ALLOW_THIS_IN_INITIALIZER_LIST(this)),
       app_notification_manager_(new AppNotificationManager(profile)),
       permissions_manager_(ALLOW_THIS_IN_INITIALIZER_LIST(this)),
       apps_promo_(profile->GetPrefs()),
-      event_routers_initialized_(false) {
+      event_routers_initialized_(false),
+      extension_warnings_(profile) {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   // Figure out if extension installation should be enabled.
   if (command_line->HasSwitch(switches::kDisableExtensions)) {
     extensions_enabled_ = false;
   } else if (profile->GetPrefs()->GetBoolean(prefs::kDisableExtensions)) {
     extensions_enabled_ = false;
   }
 
   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_PROCESS_TERMINATED,
@@ skipping 347 matching lines @@
   if (sync_bundle && sync_bundle->HasExtensionId(extension_id)) {
     sync_bundle->sync_processor->ProcessSyncChanges(
         FROM_HERE, SyncChangeList(1, sync_change));
     sync_bundle->synced_extensions.erase(extension_id);
   }
 
   // Track the uninstallation.
   UserMetrics::RecordAction(
       UserMetricsAction("Extensions.ExtensionUninstalled"));
 
+  // Uninstalling one extension might have solved the problems of others.
+  // Therefore, we clear warnings of this type for all extensions.
+  std::set<ExtensionWarningSet::WarningType> warnings;
+  extension_warnings_.GetWarningsAffectingExtension(extension_id, &warnings);
+  extension_warnings_.ClearWarnings(warnings);
+
   return true;
 }
 
 void ExtensionService::ClearExtensionData(const std::string& extension_id,
                                           const GURL& storage_url,
                                           bool is_storage_isolated) {
   scoped_refptr<ExtensionDataDeleter> deleter(new ExtensionDataDeleter(
       profile_, extension_id, storage_url, is_storage_isolated));
   deleter->StartDeleting();
 }
@@ skipping 80 matching lines @@
   } else {
     iter = std::find(terminated_extensions_.begin(),
                      terminated_extensions_.end(),
                      extension);
     terminated_extensions_.erase(iter);
   }
 
   NotifyExtensionUnloaded(extension, extension_misc::UNLOAD_REASON_DISABLE);
 
   SyncExtensionChangeIfNeeded(*extension);
+
+  // Deactivating one extension might have solved the problems of others.
+  // Therefore, we clear warnings of this type for all extensions.
+  std::set<ExtensionWarningSet::WarningType> warnings;
+  extension_warnings_.GetWarningsAffectingExtension(extension_id, &warnings);
+  extension_warnings_.ClearWarnings(warnings);
 }
 
 void ExtensionService::GrantPermissions(const Extension* extension) {
   CHECK(extension);
 
   // We only maintain the granted permissions prefs for extensions that can't
   // silently increase their permissions.
   if (extension->CanSilentlyIncreasePermissions())
     return;
 
@@ skipping 1899 matching lines @@
 
 ExtensionService::NaClModuleInfoList::iterator
     ExtensionService::FindNaClModule(const GURL& url) {
   for (NaClModuleInfoList::iterator iter = nacl_module_list_.begin();
        iter != nacl_module_list_.end(); ++iter) {
     if (iter->url == url)
       return iter;
   }
   return nacl_module_list_.end();
 }