Make checked_cast a constexpr

storage/browser/blob/blob_data_builder.cc

 // Copyright (c) 2015 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 "storage/browser/blob/blob_data_builder.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
@@ skipping 47 matching lines @@
 
 BlobDataBuilder::BlobDataBuilder(const std::string& uuid) : uuid_(uuid) {}
 BlobDataBuilder::~BlobDataBuilder() {}
 
 void BlobDataBuilder::AppendIPCDataElement(const DataElement& ipc_data) {
   uint64_t length = ipc_data.length();
   switch (ipc_data.type()) {
     case DataElement::TYPE_BYTES:
       DCHECK(!ipc_data.offset());
       AppendData(ipc_data.bytes(),
-                 base::checked_cast<size_t, uint64_t>(length));
+                 base::checked_cast<size_t>(length));
       break;
     case DataElement::TYPE_FILE:
       AppendFile(ipc_data.path(), ipc_data.offset(), length,
                  ipc_data.expected_modification_time());
       break;
     case DataElement::TYPE_FILE_FILESYSTEM:
       AppendFileSystemFile(ipc_data.filesystem_url(), ipc_data.offset(), length,
                            ipc_data.expected_modification_time());
       break;
     case DataElement::TYPE_BLOB:
@@ skipping 168 matching lines @@
       << ", content_type: " << x.content_type_
       << ", content_disposition: " << x.content_disposition_ << ", items: [";
   for (const auto& item : x.items_) {
     PrintTo(*item, os);
     *os << ", ";
   }
   *os << "]}";
 }
 
 }  // namespace storage