Code quality and standards in SimpleBackend.

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 06176379a5b3d4bc0eebff201c12203d239d3611..c8d9edea9e794ca321706b9e80a4953d66e10611 100644
--- a/net/disk_cache/simple/simple_backend_impl.cc
+++ b/net/disk_cache/simple/simple_backend_impl.cc
@@ -41,7 +41,7 @@ SimpleBackendImpl::SimpleBackendImpl(
     const FilePath& path,
     int max_bytes,
     net::CacheType type,
-    const scoped_refptr<base::TaskRunner>& cache_thread,
+    base::TaskRunner* cache_thread,
     net::NetLog* net_log)
   : path_(path),
     index_(new SimpleIndex(cache_thread,
@@ -78,18 +78,19 @@ int32 SimpleBackendImpl::GetEntryCount() const {
 int SimpleBackendImpl::OpenEntry(const std::string& key,
                                  Entry** entry,
                                  const CompletionCallback& callback) {
-  return SimpleEntryImpl::OpenEntry(index_, path_, key, entry, callback);
+  return SimpleEntryImpl::OpenEntry(index_.get(), path_, key, entry, callback);
 }
 
 int SimpleBackendImpl::CreateEntry(const std::string& key,
                                    Entry** entry,
                                    const CompletionCallback& callback) {
-  return SimpleEntryImpl::CreateEntry(index_, path_, key, entry, callback);
+  return SimpleEntryImpl::CreateEntry(index_.get(), path_, key, entry,
+                                      callback);
 }
 
 int SimpleBackendImpl::DoomEntry(const std::string& key,
                                  const net::CompletionCallback& callback) {
-  return SimpleEntryImpl::DoomEntry(index_, path_, key, callback);
+  return SimpleEntryImpl::DoomEntry(index_.get(), path_, key, callback);
 }
 
 int SimpleBackendImpl::DoomAllEntries(const CompletionCallback& callback) {