Update code that previously constructed strings from string iterators only to...

webkit/glue/multipart_response_delegate.cc

 // Copyright (c) 2006-2008 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 "webkit/glue/multipart_response_delegate.h"
 
 #include "base/logging.h"
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
 #include "net/base/net_util.h"
@@ skipping 324 matching lines @@
 
   // Skip over the initial space.
   byte_range_lower_bound_start_offset++;
 
   size_t byte_range_lower_bound_end_offset =
       content_range.find("-", byte_range_lower_bound_start_offset);
   if (byte_range_lower_bound_end_offset == std::string::npos) {
     return false;
   }
 
-  size_t byte_range_lower_bound_characters =
-      byte_range_lower_bound_end_offset - byte_range_lower_bound_start_offset;
-  std::string byte_range_lower_bound =
-      content_range.substr(byte_range_lower_bound_start_offset,
-                           byte_range_lower_bound_characters);
-
   size_t byte_range_upper_bound_start_offset =
       byte_range_lower_bound_end_offset + 1;
 
   size_t byte_range_upper_bound_end_offset =
       content_range.find("/", byte_range_upper_bound_start_offset);
   if (byte_range_upper_bound_end_offset == std::string::npos) {
     return false;
   }
 
-  size_t byte_range_upper_bound_characters =
-      byte_range_upper_bound_end_offset - byte_range_upper_bound_start_offset;
+  if (!base::StringToInt(
+      content_range.begin() + byte_range_lower_bound_start_offset,
+      content_range.begin() + byte_range_lower_bound_end_offset,
+      content_range_lower_bound))
+    return false;
 
-  std::string byte_range_upper_bound =
-      content_range.substr(byte_range_upper_bound_start_offset,
-                           byte_range_upper_bound_characters);
-
-  if (!base::StringToInt(byte_range_lower_bound, content_range_lower_bound))
-    return false;
-  if (!base::StringToInt(byte_range_upper_bound, content_range_upper_bound))
+  if (!base::StringToInt(
+      content_range.begin() + byte_range_upper_bound_start_offset,
+      content_range.begin() + byte_range_upper_bound_end_offset,
+      content_range_upper_bound))
     return false;
   return true;
 }
 
 }  // namespace webkit_glue