Remove stl_util's STLDeleteContainerPairFirstPointers.

chrome/browser/extensions/blacklist_state_fetcher.h

Index: chrome/browser/extensions/blacklist_state_fetcher.h
diff --git a/chrome/browser/extensions/blacklist_state_fetcher.h b/chrome/browser/extensions/blacklist_state_fetcher.h
index 52de5ba3caf891a17a81ee6b7705f923fe82edce..cb5f65128efc92c8d87872ca8d825356895968db 100644
--- a/chrome/browser/extensions/blacklist_state_fetcher.h
+++ b/chrome/browser/extensions/blacklist_state_fetcher.h
@@ -5,6 +5,7 @@
 #ifndef CHROME_BROWSER_EXTENSIONS_BLACKLIST_STATE_FETCHER_H_
 #define CHROME_BROWSER_EXTENSIONS_BLACKLIST_STATE_FETCHER_H_
 
+#include <algorithm>
 #include <memory>
 #include <set>
 #include <string>
@@ -58,8 +59,10 @@ class BlacklistStateFetcher : public net::URLFetcherDelegate {
   scoped_refptr<net::URLRequestContextGetter> url_request_context_getter_;
   scoped_refptr<net::URLRequestContextGetter> parent_request_context_for_test_;
 
-  // Extension id by URLFetcher.
-  std::map<const net::URLFetcher*, std::string> requests_;
+  // URLFetcher -> (owned fetcher, extension id).
+  std::map<const net::URLFetcher*,
+           std::pair<std::unique_ptr<net::URLFetcher>, std::string>>
+      requests_;
 
   // Callbacks by extension ID.
   CallbackMultiMap callbacks_;