browsing_data_remover_impl: Remove dead code.

chrome/browser/browsing_data/browsing_data_remover_impl.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/browsing_data/browsing_data_remover_impl.h"
 
 #include <map>
 #include <set>
 #include <string>
 #include <utility>
@@ skipping 30 matching lines @@
 #include "url/origin.h"
 
 using base::UserMetricsAction;
 using content::BrowserContext;
 using content::BrowserThread;
 using content::BrowsingDataFilterBuilder;
 using content::DOMStorageContext;
 
 namespace {
 
-template <typename T>
-void IgnoreArgumentHelper(const base::Closure& callback, T unused_argument) {
-  callback.Run();
-}
-
-// Another convenience method to turn a callback without arguments into one that
-// accepts (and ignores) a single argument.
-template <typename T>
-base::Callback<void(T)> IgnoreArgument(const base::Closure& callback) {
-  return base::Bind(&IgnoreArgumentHelper<T>, callback);
-}
-
 // Returns whether |origin| matches |origin_type_mask| given the special
 // storage |policy|; and if |predicate| is not null, then also whether
 // it matches |predicate|. If |origin_type_mask| contains embedder-specific
 // datatypes, |embedder_matcher| must not be null; the decision for those
 // datatypes will be delegated to it.
 bool DoesOriginMatchMaskAndURLs(
     int origin_type_mask,
     const base::Callback<bool(const GURL&)>& predicate,
     const BrowsingDataRemoverDelegate::EmbedderOriginTypeMatcher&
         embedder_matcher,
@@ skipping 607 matching lines @@
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   base::WeakPtr<BrowsingDataRemoverImpl> weak_ptr =
       weak_ptr_factory_.GetWeakPtr();
 
   // Immediately bind the weak pointer to the UI thread. This makes it easier
   // to discover potential misuse on the IO thread.
   weak_ptr.get();
 
   return weak_ptr;
 }