Code quality and standards in SimpleBackend.

net/disk_cache/simple/simple_synchronous_entry.cc

Index: net/disk_cache/simple/simple_synchronous_entry.cc
diff --git a/net/disk_cache/simple/simple_synchronous_entry.cc b/net/disk_cache/simple/simple_synchronous_entry.cc
index 509755a0508ad76243c2a29f3e37576c53ac19ef..a96f5ae2006c34e42b173dbf680fb0d605f99c7b 100644
--- a/net/disk_cache/simple/simple_synchronous_entry.cc
+++ b/net/disk_cache/simple/simple_synchronous_entry.cc
@@ -49,7 +49,7 @@ using simple_util::GetFileOffsetFromKeyAndDataOffset;
 void SimpleSynchronousEntry::OpenEntry(
     const FilePath& path,
     const std::string& key,
-    const scoped_refptr<TaskRunner>& callback_runner,
+    TaskRunner* callback_runner,
     const SynchronousCreationCallback& callback) {
   SimpleSynchronousEntry* sync_entry =
       new SimpleSynchronousEntry(callback_runner, path, key);
@@ -66,7 +66,7 @@ void SimpleSynchronousEntry::OpenEntry(
 void SimpleSynchronousEntry::CreateEntry(
     const FilePath& path,
     const std::string& key,
-    const scoped_refptr<TaskRunner>& callback_runner,
+    TaskRunner* callback_runner,
     const SynchronousCreationCallback& callback) {
   SimpleSynchronousEntry* sync_entry =
       new SimpleSynchronousEntry(callback_runner, path, key);
@@ -85,7 +85,7 @@ void SimpleSynchronousEntry::CreateEntry(
 void SimpleSynchronousEntry::DoomEntry(
     const FilePath& path,
     const std::string& key,
-    const scoped_refptr<TaskRunner>& callback_runner,
+    TaskRunner* callback_runner,
     const net::CompletionCallback& callback) {
   for (int i = 0; i < kSimpleEntryFileCount; ++i) {
     FilePath to_delete = path.AppendASCII(GetFilenameFromKeyAndIndex(key, i));
@@ -157,7 +157,7 @@ void SimpleSynchronousEntry::WriteData(
 }
 
 SimpleSynchronousEntry::SimpleSynchronousEntry(
-    const scoped_refptr<TaskRunner>& callback_runner,
+    TaskRunner* callback_runner,
     const FilePath& path,
     const std::string& key)
     : callback_runner_(callback_runner),