Fix proxy code. The pac string was corrupted when a pac...

net/proxy/proxy_resolver_winhttp.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 "net/proxy/proxy_resolver_winhttp.h"
 
 #include <windows.h>
 #include <winhttp.h>
 
 #include "base/histogram.h"
@@ skipping 74 matching lines @@
 
   // If we have been given an empty PAC url, then use auto-detection.
   //
   // NOTE: We just use DNS-based auto-detection here like Firefox.  We do this
   // to avoid WinHTTP's auto-detection code, which while more featureful (it
   // supports DHCP based auto-detection) also appears to have issues.
   //
   WINHTTP_AUTOPROXY_OPTIONS options = {0};
   options.fAutoLogonIfChallenged = TRUE;
   options.dwFlags = WINHTTP_AUTOPROXY_CONFIG_URL;
+  std::wstring pac_url_wide = ASCIIToWide(pac_url);
   options.lpszAutoConfigUrl =
-      pac_url.empty() ? L"http://wpad/wpad.dat" : ASCIIToWide(pac_url).c_str();
+      pac_url_wide.empty() ? L"http://wpad/wpad.dat" : pac_url_wide.c_str();
 
   WINHTTP_PROXY_INFO info = {0};
   DCHECK(session_handle_);
   if (!CallWinHttpGetProxyForUrl(
           session_handle_, ASCIIToWide(query_url).c_str(), &options, &info)) {
     DWORD error = GetLastError();
     LOG(ERROR) << "WinHttpGetProxyForUrl failed: " << error;
 
     // If we got here because of RPC timeout during out of process PAC
     // resolution, no further requests on this session are going to work.
@@ skipping 45 matching lines @@
 
 void ProxyResolverWinHttp::CloseWinHttpSession() {
   if (session_handle_) {
     WinHttpCloseHandle(session_handle_);
     session_handle_ = NULL;
   }
 }
 
 }  // namespace net