Update woff2 to 4e698b8

third_party/woff2/src/file.h

 // Copyright 2013 Google Inc. All Rights Reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 // http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 //
-// File IO helpers
+// File IO helpers.
 
 #ifndef WOFF2_FILE_H_
 #define WOFF2_FILE_H_
 
 #include <fstream>
 #include <iterator>
 
 namespace woff2 {
 
-inline std::string GetFileContent(std::string filename) {
+using std::string;
+
+
+inline string GetFileContent(string filename) {
   std::ifstream ifs(filename.c_str(), std::ios::binary);
-  return std::string(
+  return string(
     std::istreambuf_iterator<char>(ifs.rdbuf()),
     std::istreambuf_iterator<char>());
 }
 
-inline void SetFileContents(std::string filename, std::string content) {
+inline void SetFileContents(string filename, string::iterator start,
+    string::iterator end) {
   std::ofstream ofs(filename.c_str(), std::ios::binary);
-  std::copy(content.begin(),
-            content.end(),
-            std::ostream_iterator<char>(ofs));
+  std::copy(start, end, std::ostream_iterator<char>(ofs));
 }
 
 } // namespace woff2
 #endif  // WOFF2_FILE_H_