chrome: Use stl utilities from the base namespace

chrome/browser/extensions/api/declarative_content/declarative_content_css_condition_tracker.cc

 // Copyright 2015 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/extensions/api/declarative_content/declarative_content_css_condition_tracker.h"
 
 #include <stddef.h>
 
 #include "base/memory/ptr_util.h"
 #include "base/stl_util.h"
@@ skipping 216 matching lines @@
                      DeletePerWebContentsTracker,
                      base::Unretained(this))));
   // Note: the condition is always false until we receive OnWatchedPageChange,
   // so there's no need to evaluate it here.
 }
 
 void DeclarativeContentCssConditionTracker::OnWebContentsNavigation(
     content::WebContents* contents,
     const content::LoadCommittedDetails& details,
     const content::FrameNavigateParams& params) {
-  DCHECK(ContainsKey(per_web_contents_tracker_, contents));
+  DCHECK(base::ContainsKey(per_web_contents_tracker_, contents));
   per_web_contents_tracker_[contents]->OnWebContentsNavigation(details, params);
 }
 
 bool DeclarativeContentCssConditionTracker::EvaluatePredicate(
     const ContentPredicate* predicate,
     content::WebContents* tab) const {
   DCHECK_EQ(this, predicate->GetEvaluator());
   const DeclarativeContentCssPredicate* typed_predicate =
       static_cast<const DeclarativeContentCssPredicate*>(predicate);
   auto loc = per_web_contents_tracker_.find(tab);
   DCHECK(loc != per_web_contents_tracker_.end());
   const base::hash_set<std::string>& matching_css_selectors =
       loc->second->matching_css_selectors();
   for (const std::string& predicate_css_selector :
            typed_predicate->css_selectors()) {
-    if (!ContainsKey(matching_css_selectors, predicate_css_selector))
+    if (!base::ContainsKey(matching_css_selectors, predicate_css_selector))
       return false;
   }
 
   return true;
 }
 
 void DeclarativeContentCssConditionTracker::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
@@ skipping 33 matching lines @@
     content::RenderProcessHost* process,
     std::vector<std::string> watched_css_selectors) {
   if (delegate_->ShouldManageConditionsForBrowserContext(
           process->GetBrowserContext())) {
     process->Send(new ExtensionMsg_WatchPages(watched_css_selectors));
   }
 }
 
 void DeclarativeContentCssConditionTracker::DeletePerWebContentsTracker(
     content::WebContents* contents) {
-  DCHECK(ContainsKey(per_web_contents_tracker_, contents));
+  DCHECK(base::ContainsKey(per_web_contents_tracker_, contents));
   per_web_contents_tracker_.erase(contents);
 }
 
 }  // namespace extensions