Use explicit WebString <-> string16 conversion methods in storage API files

content/child/indexed_db/webidbfactory_impl.cc

 // Copyright 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 "content/child/indexed_db/webidbfactory_impl.h"
 
 #include "content/child/indexed_db/indexed_db_callbacks_impl.h"
 #include "content/child/indexed_db/indexed_db_database_callbacks_impl.h"
 #include "content/child/storage_util.h"
 #include "ipc/ipc_sync_channel.h"
@@ skipping 70 matching lines @@
                              WebIDBDatabaseCallbacks* database_callbacks,
                              const WebSecurityOrigin& origin) {
   auto callbacks_impl = base::MakeUnique<IndexedDBCallbacksImpl>(
       base::WrapUnique(callbacks), transaction_id, nullptr, io_runner_);
   auto database_callbacks_impl =
       base::MakeUnique<IndexedDBDatabaseCallbacksImpl>(
           base::WrapUnique(database_callbacks));
   io_runner_->PostTask(
       FROM_HERE,
       base::Bind(&IOThreadHelper::Open, base::Unretained(io_helper_),
-                 base::string16(name), version, transaction_id,
+                 name.utf16(), version, transaction_id,
                  base::Passed(&callbacks_impl),
                  base::Passed(&database_callbacks_impl), url::Origin(origin)));
 }
 
 void WebIDBFactoryImpl::deleteDatabase(const WebString& name,
                                        WebIDBCallbacks* callbacks,
                                        const WebSecurityOrigin& origin) {
   auto callbacks_impl = base::MakeUnique<IndexedDBCallbacksImpl>(
       base::WrapUnique(callbacks), IndexedDBCallbacksImpl::kNoTransaction,
       nullptr, io_runner_);
   io_runner_->PostTask(
       FROM_HERE,
       base::Bind(&IOThreadHelper::DeleteDatabase, base::Unretained(io_helper_),
-                 base::string16(name), base::Passed(&callbacks_impl),
+                 name.utf16(), base::Passed(&callbacks_impl),
                  url::Origin(origin)));
 }
 
 WebIDBFactoryImpl::IOThreadHelper::IOThreadHelper(
     scoped_refptr<IPC::SyncMessageFilter> sync_message_filter)
     : sync_message_filter_(std::move(sync_message_filter)) {}
 
 WebIDBFactoryImpl::IOThreadHelper::~IOThreadHelper() {}
 
 FactoryAssociatedPtr& WebIDBFactoryImpl::IOThreadHelper::GetService() {
@@ skipping 44 matching lines @@
 
 void WebIDBFactoryImpl::IOThreadHelper::DeleteDatabase(
     const base::string16& name,
     std::unique_ptr<IndexedDBCallbacksImpl> callbacks,
     const url::Origin& origin) {
   GetService()->DeleteDatabase(GetCallbacksProxy(std::move(callbacks)), origin,
                                name);
 }
 
 }  // namespace content