Remove stl_util's STLDeleteContainerPairFirstPointers.

chrome/browser/predictors/resource_prefetcher.h

Index: chrome/browser/predictors/resource_prefetcher.h
diff --git a/chrome/browser/predictors/resource_prefetcher.h b/chrome/browser/predictors/resource_prefetcher.h
index 43dbc8a6c67a89f6ed28ad84219a30568a471e25..3a88990bcb729829be7ccd0d71b0a7eb15b05487 100644
--- a/chrome/browser/predictors/resource_prefetcher.h
+++ b/chrome/browser/predictors/resource_prefetcher.h
@@ -7,6 +7,7 @@
 
 #include <stddef.h>
 
+#include <algorithm>

[pasko, 2016/09/01 12:30:45]

nit: std::pair is in <utility>, including that would be preferable

 #include <list>
 #include <map>
 #include <memory>
@@ -154,7 +155,9 @@ class ResourcePrefetcher : public net::URLRequest::Delegate {
   PrefetchKeyType key_type_;
   std::unique_ptr<RequestVector> request_vector_;
 
-  std::map<net::URLRequest*, Request*> inflight_requests_;
+  std::map<net::URLRequest*,
+           std::pair<std::unique_ptr<net::URLRequest>, Request*>>
+      inflight_requests_;
   std::list<Request*> request_queue_;
   std::map<std::string, size_t> host_inflight_counts_;