Continue to clean c_str() calls.

components/signin/core/browser/about_signin_internals.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 "components/signin/core/browser/about_signin_internals.h"
 
 #include <stddef.h>
 
 #include <tuple>
 #include <utility>
@@ skipping 170 matching lines @@
 void AboutSigninInternals::RegisterPrefs(
     user_prefs::PrefRegistrySyncable* user_prefs) {
   // SigninManager information for about:signin-internals.
 
   // TODO(rogerta): leaving untimed fields here for now because legacy
   // profiles still have these prefs.  In three or four version from M43
   // we can probably remove them.
   for (int i = UNTIMED_FIELDS_BEGIN; i < UNTIMED_FIELDS_END; ++i) {
     const std::string pref_path =
         SigninStatusFieldToString(static_cast<UntimedSigninStatusField>(i));
-    user_prefs->RegisterStringPref(pref_path.c_str(), std::string());
+    user_prefs->RegisterStringPref(pref_path, std::string());
   }
 
   for (int i = TIMED_FIELDS_BEGIN; i < TIMED_FIELDS_END; ++i) {
     const std::string value =
         SigninStatusFieldToString(static_cast<TimedSigninStatusField>(i)) +
         ".value";
     const std::string time =
         SigninStatusFieldToString(static_cast<TimedSigninStatusField>(i)) +
         ".time";
-    user_prefs->RegisterStringPref(value.c_str(), std::string());
-    user_prefs->RegisterStringPref(time.c_str(), std::string());
+    user_prefs->RegisterStringPref(value, std::string());
+    user_prefs->RegisterStringPref(time, std::string());
   }
 }
 
 void AboutSigninInternals::AddSigninObserver(
     AboutSigninInternals::Observer* observer) {
   signin_observers_.AddObserver(observer);
 }
 
 void AboutSigninInternals::RemoveSigninObserver(
     AboutSigninInternals::Observer* observer) {
@@ skipping 246 matching lines @@
       new base::DictionaryValue());
   token_info->SetString("service", consumer_id);
 
   std::string scopes_str;
   for (OAuth2TokenService::ScopeSet::const_iterator it = scopes.begin();
        it != scopes.end();
        ++it) {
     scopes_str += *it + "<br/>";
   }
   token_info->SetString("scopes", scopes_str);
-  token_info->SetString("request_time", GetTimeStr(request_time).c_str());
+  token_info->SetString("request_time", GetTimeStr(request_time));
 
   if (removed_) {
     token_info->SetString("status", "Token was revoked.");
   } else if (!receive_time.is_null()) {
     if (error == GoogleServiceAuthError::AuthErrorNone()) {
       bool token_expired = expiration_time < base::Time::Now();
       std::string expiration_time_string = GetTimeStr(expiration_time);
       if (expiration_time.is_null()) {
         token_expired = false;
         expiration_time_string = "Expiration time not available";
@@ skipping 208 matching lines @@
   }
 
   for(const std::string& account_id : accounts_in_token_service) {
     std::unique_ptr<base::DictionaryValue> entry(new base::DictionaryValue());
     entry->SetString("accountId", account_id);
     account_info->Append(std::move(entry));
   }
 
   return signin_status;
 }