Call scoped_refptr<T>::get() rather than relying on implicit "operator T*"

net/disk_cache/simple/simple_backend_impl.cc

Index: net/disk_cache/simple/simple_backend_impl.cc
diff --git a/net/disk_cache/simple/simple_backend_impl.cc b/net/disk_cache/simple/simple_backend_impl.cc
index 1179153fd1b4f6c1fde04956ee06b2c13ef96828..4e7410668faf0cacf8d08d06befd9b220daca250 100644
--- a/net/disk_cache/simple/simple_backend_impl.cc
+++ b/net/disk_cache/simple/simple_backend_impl.cc
@@ -133,12 +133,11 @@ void RecordIndexLoad(base::TimeTicks constructed_since, int result) {
 
 namespace disk_cache {
 
-SimpleBackendImpl::SimpleBackendImpl(
-    const FilePath& path,
-    int max_bytes,
-    net::CacheType type,
-    base::SingleThreadTaskRunner* cache_thread,
-    net::NetLog* net_log)
+SimpleBackendImpl::SimpleBackendImpl(const FilePath& path,
+                                     int max_bytes,
+                                     net::CacheType type,
+                                     base::SingleThreadTaskRunner* cache_thread,
+                                     net::NetLog* net_log)
     : path_(path),
       index_(new SimpleIndex(MessageLoopProxy::current(),  // io_thread
                              path,