Revert revision 176015

chrome/browser/extensions/api/storage/sync_or_local_value_store_cache.cc

Index: chrome/browser/extensions/api/storage/sync_or_local_value_store_cache.cc
===================================================================
--- chrome/browser/extensions/api/storage/sync_or_local_value_store_cache.cc	(revision 176053)
+++ chrome/browser/extensions/api/storage/sync_or_local_value_store_cache.cc	(working copy)
@@ -1,115 +0,0 @@
-// Copyright (c) 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/api/storage/sync_or_local_value_store_cache.h"
-
-#include "base/bind.h"
-#include "base/callback.h"
-#include "base/file_path.h"
-#include "base/sequenced_task_runner.h"
-#include "chrome/browser/extensions/api/storage/settings_backend.h"
-#include "chrome/browser/extensions/api/storage/settings_frontend.h"
-#include "chrome/browser/extensions/api/storage/settings_storage_quota_enforcer.h"
-#include "chrome/browser/extensions/api/storage/weak_unlimited_settings_storage.h"
-#include "chrome/browser/extensions/extension_service.h"
-#include "chrome/common/extensions/extension.h"
-#include "chrome/common/extensions/permissions/api_permission.h"
-#include "content/public/browser/browser_thread.h"
-
-using content::BrowserThread;
-
-namespace extensions {
-
-SyncOrLocalValueStoreCache::SyncOrLocalValueStoreCache(
-    settings_namespace::Namespace settings_namespace,
-    const scoped_refptr<SettingsStorageFactory>& factory,
-    const SettingsStorageQuotaEnforcer::Limits& quota,
-    const scoped_refptr<SettingsObserverList>& observers,
-    const FilePath& profile_path)
-    : settings_namespace_(settings_namespace) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  DCHECK(settings_namespace_ == settings_namespace::LOCAL ||
-         settings_namespace_ == settings_namespace::SYNC);
-
-  // This post is safe since the destructor can only be invoked from the
-  // same message loop, and any potential post of a deletion task must come
-  // after the constructor returns.
-  BrowserThread::PostTask(
-      BrowserThread::FILE, FROM_HERE,
-      base::Bind(&SyncOrLocalValueStoreCache::InitOnFileThread,
-                 base::Unretained(this),
-                 factory, quota, observers, profile_path));
-}
-
-SyncOrLocalValueStoreCache::~SyncOrLocalValueStoreCache() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-}
-
-SettingsBackend* SyncOrLocalValueStoreCache::GetAppBackend() const {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  DCHECK(app_backend_.get());
-  return app_backend_.get();
-}
-
-SettingsBackend* SyncOrLocalValueStoreCache::GetExtensionBackend() const {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  DCHECK(extension_backend_.get());
-  return extension_backend_.get();
-}
-
-void SyncOrLocalValueStoreCache::RunWithValueStoreForExtension(
-    const StorageCallback& callback,
-    scoped_refptr<const Extension> extension) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  DCHECK(app_backend_.get());
-  DCHECK(extension_backend_.get());
-  SettingsBackend* backend =
-      extension->is_app() ? app_backend_.get() : extension_backend_.get();
-  ValueStore* storage = backend->GetStorage(extension->id());
-
-  // A neat way to implement unlimited storage; if the extension has the
-  // unlimited storage permission, force through all calls to Set() (in the
-  // same way that writes from sync ignore quota).
-  // But only if it's local storage (bad stuff would happen if sync'ed
-  // storage is allowed to be unlimited).
-  bool is_unlimited =
-      settings_namespace_ == settings_namespace::LOCAL &&
-      extension->HasAPIPermission(APIPermission::kUnlimitedStorage);
-
-  if (is_unlimited) {
-    WeakUnlimitedSettingsStorage unlimited_storage(storage);
-    callback.Run(&unlimited_storage);
-  } else {
-    callback.Run(storage);
-  }
-}
-
-void SyncOrLocalValueStoreCache::DeleteStorageSoon(
-    const std::string& extension_id) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  app_backend_->DeleteStorage(extension_id);
-  extension_backend_->DeleteStorage(extension_id);
-}
-
-void SyncOrLocalValueStoreCache::InitOnFileThread(
-    const scoped_refptr<SettingsStorageFactory>& factory,
-    const SettingsStorageQuotaEnforcer::Limits& quota,
-    const scoped_refptr<SettingsObserverList>& observers,
-    const FilePath& profile_path) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  DCHECK(!app_backend_.get());
-  DCHECK(!extension_backend_.get());
-  const bool local = settings_namespace_ == settings_namespace::LOCAL;
-  const FilePath app_path = profile_path.AppendASCII(
-      local ? ExtensionService::kLocalAppSettingsDirectoryName
-            : ExtensionService::kSyncAppSettingsDirectoryName);
-  const FilePath extension_path = profile_path.AppendASCII(
-      local ? ExtensionService::kLocalExtensionSettingsDirectoryName
-            : ExtensionService::kSyncExtensionSettingsDirectoryName);
-  app_backend_.reset(new SettingsBackend(factory, app_path, quota, observers));
-  extension_backend_.reset(
-      new SettingsBackend(factory, extension_path, quota, observers));
-}
-
-}  // namespace extensions