Remove the ability to retain local data of evicted ephemeral apps

chrome/browser/extensions/extension_garbage_collector.cc

 // Copyright 2014 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_garbage_collector.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/files/file_enumerator.h"
 #include "base/logging.h"
@@ skipping 209 matching lines @@
        iter != extensions->end();
        ++iter) {
     if (AppIsolationInfo::HasIsolatedStorage(iter->get())) {
       active_paths->insert(
           content::BrowserContext::GetStoragePartitionForSite(
               context_, util::GetSiteForExtensionId((*iter)->id(), context_))
               ->GetPath());
     }
   }
 
-  // The data of ephemeral apps can outlive their cache lifetime. Ensure
-  // they are not garbage collected.
-  scoped_ptr<ExtensionPrefs::ExtensionsInfo> evicted_apps_info(
-      extension_prefs->GetEvictedEphemeralAppsInfo());
-  for (size_t i = 0; i < evicted_apps_info->size(); ++i) {
-    ExtensionInfo* info = evicted_apps_info->at(i).get();
-    if (util::HasIsolatedStorage(*info)) {
-      active_paths->insert(content::BrowserContext::GetStoragePartitionForSite(
-                               context_,
-                               util::GetSiteForExtensionId(
-                                   info->extension_id, context_))->GetPath());
-    }
-  }
-
   ExtensionService* service =
       ExtensionSystem::Get(context_)->extension_service();
   service->OnGarbageCollectIsolatedStorageStart();
   content::BrowserContext::GarbageCollectStoragePartitions(
       context_,
       active_paths.Pass(),
       base::Bind(&ExtensionService::OnGarbageCollectIsolatedStorageFinished,
                  service->AsWeakPtr()));
 }
 
@@ skipping 11 matching lines @@
     // accounting.
     NOTREACHED();
 
     // Don't let the count go negative to avoid garbage collecting when
     // an install is actually in progress.
     crx_installs_in_progress_ = 0;
   }
 }
 
 }  // namespace extensions