Switch to using scoped_refptr in chrome/profile_import

chrome/profile_import/profile_import_thread.cc

Index: chrome/profile_import/profile_import_thread.cc
diff --git a/chrome/profile_import/profile_import_thread.cc b/chrome/profile_import/profile_import_thread.cc
index dce3c628617dc46581be4f3925e896dba142b57c..57008235e84a21ece67035d78637a39e534f6866 100644
--- a/chrome/profile_import/profile_import_thread.cc
+++ b/chrome/profile_import/profile_import_thread.cc
@@ -51,7 +51,6 @@ void ProfileImportThread::OnImportStart(
     const DictionaryValue& localized_strings,
     bool import_to_bookmark_bar) {
   bridge_ = new ExternalProcessImporterBridge(this, localized_strings);
-  bridge_->AddRef();  // Balanced in Cleanup().
 
   ImporterList importer_list;
   importer_ = importer_list.CreateImporterByType(profile_info.browser_type);
@@ -61,7 +60,6 @@ void ProfileImportThread::OnImportStart(
     return;
   }
 
-  importer_->AddRef();  // Balanced in Cleanup().
   importer_->set_import_to_bookmark_bar(import_to_bookmark_bar);
   items_to_import_ = items;
 
@@ -73,9 +71,14 @@ void ProfileImportThread::OnImportStart(
     NOTREACHED();
     Cleanup();
   }
-  import_thread_->message_loop()->PostTask(FROM_HERE,
-      NewRunnableMethod(importer_, &Importer::StartImport,
-          profile_info, items, bridge_));
+  import_thread_->message_loop()->PostTask(
+      FROM_HERE,
+      NewRunnableMethod(
+          importer_.get(),
+          &Importer::StartImport,
+          profile_info,
+          items,
+          bridge_));
 }
 
 void ProfileImportThread::OnImportCancel() {
@@ -186,7 +189,7 @@ void ProfileImportThread::NotifyKeywordsReady(
 
 void ProfileImportThread::Cleanup() {
   importer_->Cancel();
-  importer_->Release();
-  bridge_->Release();
+  importer_ = NULL;
+  bridge_ = NULL;
   ChildProcess::current()->ReleaseProcess();
 }