components: Use stl utilities from the base namespace

components/spellcheck/renderer/spellcheck.cc

Index: components/spellcheck/renderer/spellcheck.cc
diff --git a/components/spellcheck/renderer/spellcheck.cc b/components/spellcheck/renderer/spellcheck.cc
index 8cde79e26877b6cb7d060d342471dff94e7645f9..af6603b572df4b140ebef41b086fd22e2a03671a 100644
--- a/components/spellcheck/renderer/spellcheck.cc
+++ b/components/spellcheck/renderer/spellcheck.cc
@@ -195,8 +195,8 @@ void SpellCheck::FillSuggestions(
 
     const base::string16& suggestion = suggestions_list[language][index];
     // Only add the suggestion if it's unique.
-    if (!ContainsValue(*optional_suggestions, suggestion)) {
-        optional_suggestions->push_back(suggestion);
+    if (!base::ContainsValue(*optional_suggestions, suggestion)) {
+      optional_suggestions->push_back(suggestion);
     }
     if (optional_suggestions->size() >= spellcheck::kMaxSuggestions) {
       break;