Reduce the copying of string data between C++ and javascript in proxy_resolver_v8.cc.

net/proxy/proxy_resolver_v8.h

 // Copyright (c) 2009 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.
 
 #ifndef NET_PROXY_PROXY_RESOLVER_V8_H_
 #define NET_PROXY_PROXY_RESOLVER_V8_H_
 
-#include <string>
-
 #include "base/scoped_ptr.h"
 #include "net/proxy/proxy_resolver.h"
 
 class MessageLoop;
 
 namespace net {
 
 class HostResolver;
 class ProxyResolverJSBindings;
 
@@ skipping 36 matching lines @@
   ProxyResolverJSBindings* js_bindings() const { return js_bindings_.get(); }
 
  private:
   // Context holds the Javascript state for the most recently loaded PAC
   // script. It corresponds with the data from the last call to
   // SetPacScript().
   class Context;
 
   // ProxyResolver implementation:
   virtual int SetPacScript(const GURL& /*pac_url*/,
-                           const std::string& bytes_utf8,
+                           const string16& pac_script,
                            CompletionCallback* /*callback*/);
   scoped_ptr<Context> context_;
 
   scoped_ptr<ProxyResolverJSBindings> js_bindings_;
 
   DISALLOW_COPY_AND_ASSIGN(ProxyResolverV8);
 };
 
 }  // namespace net
 
 #endif  // NET_PROXY_PROXY_RESOLVER_V8_H_