--- chrome/browser/devtools/devtools_file_system_indexer.cc.orig	2017-09-15 11:30:41.000000000 +0000
+++ chrome/browser/devtools/devtools_file_system_indexer.cc	2017-09-15 11:31:27.807511773 +0000
@@ -34,7 +34,7 @@
 using base::TimeTicks;
 using content::BrowserThread;
 using std::map;
-using std::set;
+//using std::set;
 using std::string;
 using std::vector;
 
@@ -191,7 +191,7 @@
     if (trigram != kUndefinedTrigram)
       trigrams.push_back(trigram);
   }
-  set<FileId> file_ids;
+  std::set<FileId> file_ids;
   bool first = true;
   vector<Trigram>::const_iterator it = trigrams.begin();
   for (; it != trigrams.end(); ++it) {
@@ -203,7 +203,7 @@
       first = false;
       continue;
     }
-    set<FileId> intersection = base::STLSetIntersection<set<FileId> >(
+    std::set<FileId> intersection = base::STLSetIntersection<std::set<FileId> >(
         file_ids, index_[trigram]);
     file_ids.swap(intersection);
   }