content: Use stl utilities from the base namespace

content/browser/host_zoom_map_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 "content/browser/host_zoom_map_impl.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/strings/string_piece.h"
@@ skipping 422 matching lines @@
   base::AutoLock auto_lock(lock_);
   view_page_scale_factors_are_one_.erase(
       RenderViewKey(render_process_id, render_view_id));
 }
 
 bool HostZoomMapImpl::UsesTemporaryZoomLevel(int render_process_id,
                                              int render_view_id) const {
   RenderViewKey key(render_process_id, render_view_id);
 
   base::AutoLock auto_lock(lock_);
-  return ContainsKey(temporary_zoom_levels_, key);
+  return base::ContainsKey(temporary_zoom_levels_, key);
 }
 
 double HostZoomMapImpl::GetTemporaryZoomLevel(int render_process_id,
                                               int render_view_id) const {
   base::AutoLock auto_lock(lock_);
   RenderViewKey key(render_process_id, render_view_id);
-  if (!ContainsKey(temporary_zoom_levels_, key))
+  if (!base::ContainsKey(temporary_zoom_levels_, key))
     return 0;
 
   return temporary_zoom_levels_.find(key)->second;
 }
 
 void HostZoomMapImpl::SetTemporaryZoomLevel(int render_process_id,
                                             int render_view_id,
                                             double level) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
@@ skipping 15 matching lines @@
 
   zoom_level_changed_callbacks_.Notify(change);
 }
 
 double HostZoomMapImpl::GetZoomLevelForView(const GURL& url,
                                             int render_process_id,
                                             int render_view_id) const {
   RenderViewKey key(render_process_id, render_view_id);
   base::AutoLock auto_lock(lock_);
 
-  if (ContainsKey(temporary_zoom_levels_, key))
+  if (base::ContainsKey(temporary_zoom_levels_, key))
     return temporary_zoom_levels_.find(key)->second;
 
   return GetZoomLevelForHostAndSchemeInternal(url.scheme(),
                                               net::GetHostOrSpecFromURL(url));
 }
 
 void HostZoomMapImpl::Observe(int type,
                               const NotificationSource& source,
                               const NotificationDetails& details) {
   switch (type) {
@@ skipping 54 matching lines @@
   double error_page_zoom_level = GetZoomLevelForHost(host);
 
   SendZoomLevelChange(std::string(), host, error_page_zoom_level);
 }
 
 HostZoomMapImpl::~HostZoomMapImpl() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 }
 
 }  // namespace content