Add RetainedRef uses where needed.

chrome/browser/printing/print_job_worker.cc

Index: chrome/browser/printing/print_job_worker.cc
diff --git a/chrome/browser/printing/print_job_worker.cc b/chrome/browser/printing/print_job_worker.cc
index e7cdf14c7fd54397ec6d955098f017c5714e6b00..283a5090570a0d676f143183d66590eaa9f74ac9 100644
--- a/chrome/browser/printing/print_job_worker.cc
+++ b/chrome/browser/printing/print_job_worker.cc
@@ -374,11 +374,9 @@ void PrintJobWorker::OnDocumentDone() {
   }
 
   owner_->PostTask(FROM_HERE,
-                   base::Bind(&NotificationCallback,
-                              make_scoped_refptr(owner_),
+                   base::Bind(&NotificationCallback, base::RetainedRef(owner_),
                               JobEventDetails::DOC_DONE,
-                              document_,
-                              scoped_refptr<PrintedPage>()));
+                              base::RetainedRef(document_), nullptr));
 
   // Makes sure the variables are reinitialized.
   document_ = NULL;
@@ -389,12 +387,11 @@ void PrintJobWorker::SpoolPage(PrintedPage* page) {
   DCHECK_NE(page_number_, PageNumber::npos());
 
   // Signal everyone that the page is about to be printed.
-  owner_->PostTask(FROM_HERE,
-                   base::Bind(&NotificationCallback,
-                              make_scoped_refptr(owner_),
-                              JobEventDetails::NEW_PAGE,
-                              document_,
-                              make_scoped_refptr(page)));
+  owner_->PostTask(
+      FROM_HERE,
+      base::Bind(&NotificationCallback, base::RetainedRef(owner_),
+                 JobEventDetails::NEW_PAGE, base::RetainedRef(document_),
+                 base::RetainedRef(page)));
 
   // Preprocess.
   if (printing_context_->NewPage() != PrintingContext::OK) {
@@ -416,12 +413,11 @@ void PrintJobWorker::SpoolPage(PrintedPage* page) {
   }
 
   // Signal everyone that the page is printed.
-  owner_->PostTask(FROM_HERE,
-                   base::Bind(&NotificationCallback,
-                              make_scoped_refptr(owner_),
-                              JobEventDetails::PAGE_DONE,
-                              document_,
-                              make_scoped_refptr(page)));
+  owner_->PostTask(
+      FROM_HERE,
+      base::Bind(&NotificationCallback, base::RetainedRef(owner_),
+                 JobEventDetails::PAGE_DONE, base::RetainedRef(document_),
+                 base::RetainedRef(page)));
 }
 
 void PrintJobWorker::OnFailure() {
@@ -431,11 +427,9 @@ void PrintJobWorker::OnFailure() {
   scoped_refptr<PrintJobWorkerOwner> handle(owner_);
 
   owner_->PostTask(FROM_HERE,
-                   base::Bind(&NotificationCallback,
-                              make_scoped_refptr(owner_),
+                   base::Bind(&NotificationCallback, base::RetainedRef(owner_),
                               JobEventDetails::FAILED,
-                              document_,
-                              scoped_refptr<PrintedPage>()));
+                              base::RetainedRef(document_), nullptr));
   Cancel();
 
   // Makes sure the variables are reinitialized.