Remove redundant c_str() calls.

chrome/browser/component_updater/pnacl_component_installer.cc

 // Copyright (c) 2012 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 "chrome/browser/component_updater/pnacl_component_installer.h"
 
 #include <stdint.h>
 #include <string>
 #include <vector>
 
@@ skipping 167 matching lines @@
     LOG(WARNING) << "'name' field in manifest is invalid (" << name
                  << ") -- missing (" << kPnaclManifestName << ")";
     return false;
   }
 
   std::string proposed_version;
   if (!manifest.GetStringASCII("version", &proposed_version)) {
     LOG(WARNING) << "'version' field is missing from manifest!";
     return false;
   }
-  base::Version version(proposed_version.c_str());
+  base::Version version(proposed_version);
   if (!version.IsValid()) {
     LOG(WARNING) << "'version' field in manifest is invalid "
                  << version.GetString();
     return false;
   }
 
   // Now check the |pnacl_manifest|.
   std::string arch;
   if (!pnacl_manifest.GetStringASCII("pnacl-arch", &arch)) {
     LOG(WARNING) << "'pnacl-arch' field is missing from pnacl-manifest!";
@@ skipping 194 matching lines @@
 }  // namespace component_updater
 
 namespace pnacl {
 
 bool NeedsOnDemandUpdate() {
   return base::subtle::NoBarrier_Load(
              &component_updater::needs_on_demand_update) != 0;
 }
 
 }  // namespace pnacl