Session-only local storage cleared on exit.

chrome/browser/extensions/extension_special_storage_policy.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_special_storage_policy.h"
 
 #include "base/logging.h"
+#include "chrome/browser/content_settings/host_content_settings_map.h"
+#include "chrome/common/content_settings.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/url_constants.h"
 #include "content/browser/browser_thread.h"
 
-ExtensionSpecialStoragePolicy::ExtensionSpecialStoragePolicy() {}
+ExtensionSpecialStoragePolicy::ExtensionSpecialStoragePolicy(
+    HostContentSettingsMap* host_content_settings_map)
+    : host_content_settings_map_(host_content_settings_map) {}
 
 ExtensionSpecialStoragePolicy::~ExtensionSpecialStoragePolicy() {}
 
 bool ExtensionSpecialStoragePolicy::IsStorageProtected(const GURL& origin) {
   if (origin.SchemeIs(chrome::kExtensionScheme))
     return true;
   base::AutoLock locker(lock_);
   return protected_apps_.Contains(origin);
 }
 
 bool ExtensionSpecialStoragePolicy::IsStorageUnlimited(const GURL& origin) {
   base::AutoLock locker(lock_);
   return unlimited_extensions_.Contains(origin);
 }
 
+bool ExtensionSpecialStoragePolicy::IsStorageSessionOnly(const GURL& origin) {
+  if (host_content_settings_map_ == NULL)
+    return false;
+  ContentSetting content_setting = host_content_settings_map_->
+      GetCookieContentSetting(origin, origin, true);
+  return (content_setting == CONTENT_SETTING_SESSION_ONLY);
+}
+
 bool ExtensionSpecialStoragePolicy::IsFileHandler(
     const std::string& extension_id) {
   base::AutoLock locker(lock_);
   return file_handler_extensions_.ContainsExtension(extension_id);
 }
 
 void ExtensionSpecialStoragePolicy::GrantRightsForExtension(
     const Extension* extension) {
   DCHECK(extension);
   if (!extension->is_hosted_app() &&
@@ skipping 100 matching lines @@
 void ExtensionSpecialStoragePolicy::SpecialCollection::Remove(
     const Extension* extension) {
   cached_results_.clear();
   extensions_.erase(extension->id());
 }
 
 void ExtensionSpecialStoragePolicy::SpecialCollection::Clear() {
   cached_results_.clear();
   extensions_.clear();
 }