Fix a typo in an OAuth2TokenService classname

components/signin/ios/browser/profile_oauth2_token_service_ios.mm

 // Copyright 2014 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/ios/browser/profile_oauth2_token_service_ios.h"
 
 #include <Foundation/Foundation.h>
 
 #include <set>
 #include <string>
@@ skipping 194 matching lines @@
   DCHECK(!primary_account_id.empty());
 
   GetProvider()->InitializeSharedAuthentication();
   ReloadCredentials();
   FireRefreshTokensLoaded();
 }
 
 void ProfileOAuth2TokenServiceIOS::ReloadCredentials() {
   DCHECK(thread_checker_.CalledOnValidThread());
 
-  ScopedBacthChange batch(this);
+  ScopedBatchChange batch(this);
 
   // Remove all old accounts that do not appear in |new_accounts| and then
   // load |new_accounts|.
   std::vector<std::string> new_accounts(GetProvider()->GetAllAccountIds());
   std::vector<std::string> old_accounts(GetAccounts());
   for (auto i = old_accounts.begin(); i != old_accounts.end(); ++i) {
     if (std::find(new_accounts.begin(), new_accounts.end(), *i) ==
         new_accounts.end()) {
       RemoveAccount(*i);
     }
   }
 
   // Load all new_accounts.
   for (auto i = new_accounts.begin(); i != new_accounts.end(); ++i) {
     AddOrUpdateAccount(*i);
   }
 }
 
 void ProfileOAuth2TokenServiceIOS::UpdateCredentials(
     const std::string& account_id,
     const std::string& refresh_token) {
   DCHECK(thread_checker_.CalledOnValidThread());
   NOTREACHED() << "Unexpected call to UpdateCredentials when using shared "
                   "authentication.";
 }
 
 void ProfileOAuth2TokenServiceIOS::RevokeAllCredentials() {
   DCHECK(thread_checker_.CalledOnValidThread());
 
-  ScopedBacthChange batch(this);
+  ScopedBatchChange batch(this);
   CancelAllRequests();
   ClearCache();
   AccountInfoMap toRemove = accounts_;
   for (AccountInfoMap::iterator i = toRemove.begin(); i != toRemove.end(); ++i)
     RemoveAccount(i->first);
 
   DCHECK_EQ(0u, accounts_.size());
 }
 
 OAuth2AccessTokenFetcher*
@@ skipping 87 matching lines @@
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK(!account_id.empty());
 
   if (accounts_.count(account_id) > 0) {
     CancelRequestsForAccount(account_id);
     ClearCacheForAccount(account_id);
     accounts_.erase(account_id);
     FireRefreshTokenRevoked(account_id);
   }
 }