chrome: Use stl utilities from the base namespace

chrome/browser/printing/background_printing_manager.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/printing/background_printing_manager.h"
 
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "base/stl_util.h"
 #include "base/threading/thread_task_runner_handle.h"
@@ skipping 43 matching lines @@
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 }
 
 BackgroundPrintingManager::~BackgroundPrintingManager() {
   DCHECK(CalledOnValidThread());
   // The might be some WebContentses still in |printing_contents_map_| at this
   // point (e.g. when the last remaining tab closes and there is still a print
   // preview WebContents trying to print). In such a case it will fail to print,
   // but we should at least clean up the observers.
   // TODO(thestig): Handle this case better.
-  STLDeleteValues(&printing_contents_map_);
+  base::STLDeleteValues(&printing_contents_map_);
 }
 
 void BackgroundPrintingManager::OwnPrintPreviewDialog(
     WebContents* preview_dialog) {
   DCHECK(CalledOnValidThread());
   DCHECK(PrintPreviewDialogController::IsPrintPreviewDialog(preview_dialog));
   CHECK(!HasPrintPreviewDialog(preview_dialog));
 
   printing_contents_map_[preview_dialog] = new Observer(this, preview_dialog);
 
@@ skipping 49 matching lines @@
   std::set<content::WebContents*> result;
   for (WebContentsObserverMap::iterator i = printing_contents_map_.begin();
        i != printing_contents_map_.end(); ++i) {
     result.insert(i->first);
   }
   return result;
 }
 
 bool BackgroundPrintingManager::HasPrintPreviewDialog(
     WebContents* preview_dialog) {
-  return ContainsKey(printing_contents_map_, preview_dialog);
+  return base::ContainsKey(printing_contents_map_, preview_dialog);
 }
 
 }  // namespace printing