Remove use of stl_util's STLDeleteContainerPairSecondPointers from content/.

content/browser/appcache/appcache_storage.h

Index: content/browser/appcache/appcache_storage.h
diff --git a/content/browser/appcache/appcache_storage.h b/content/browser/appcache/appcache_storage.h
index d4e5dfe37d9ae747c7d84b5c003475cecbe6e21b..3b3f182e6ba774e859a62eb478f53b8660e8ac34 100644
--- a/content/browser/appcache/appcache_storage.h
+++ b/content/browser/appcache/appcache_storage.h
@@ -275,7 +275,8 @@ class CONTENT_EXPORT AppCacheStorage {
     scoped_refptr<HttpResponseInfoIOBuffer> info_buffer_;
   };
 
-  typedef std::map<int64_t, ResponseInfoLoadTask*> PendingResponseInfoLoads;
+  typedef std::map<int64_t, std::unique_ptr<ResponseInfoLoadTask>>
+      PendingResponseInfoLoads;
 
   DelegateReference* GetDelegateReference(Delegate* delegate) {
     DelegateReferenceMap::iterator iter =
@@ -295,10 +296,9 @@ class CONTENT_EXPORT AppCacheStorage {
   ResponseInfoLoadTask* GetOrCreateResponseInfoLoadTask(
       const GURL& manifest_url,
       int64_t response_id) {
-    PendingResponseInfoLoads::iterator iter =
-        pending_info_loads_.find(response_id);
+    auto iter = pending_info_loads_.find(response_id);
     if (iter != pending_info_loads_.end())
-      return iter->second;
+      return iter->second.get();
     return new ResponseInfoLoadTask(manifest_url, response_id, this);
   }
 
@@ -319,6 +319,8 @@ class CONTENT_EXPORT AppCacheStorage {
   AppCacheWorkingSet working_set_;
   AppCacheServiceImpl* service_;
   DelegateReferenceMap delegate_references_;
+
+  // Note that the ResponseInfoLoadTask items add themselves to this map.
   PendingResponseInfoLoads pending_info_loads_;
 
   // The set of last ids must be retrieved from storage prior to being used.