Add RetainedRef uses where needed.

content/browser/dom_storage/dom_storage_context_wrapper.cc

Index: content/browser/dom_storage/dom_storage_context_wrapper.cc
diff --git a/content/browser/dom_storage/dom_storage_context_wrapper.cc b/content/browser/dom_storage/dom_storage_context_wrapper.cc
index 1bbe8af07cfa0ca26d6d58fe301ab5478e2e0f10..db488aad83791fc6edb016d0c102c2686dbc1a19 100644
--- a/content/browser/dom_storage/dom_storage_context_wrapper.cc
+++ b/content/browser/dom_storage/dom_storage_context_wrapper.cc
@@ -93,7 +93,8 @@ void DOMStorageContextWrapper::GetLocalStorageUsage(
   context_->task_runner()->PostShutdownBlockingTask(
       FROM_HERE, DOMStorageTaskRunner::PRIMARY_SEQUENCE,
       base::Bind(&GetLocalStorageUsageHelper,
-                 base::ThreadTaskRunnerHandle::Get(), context_, callback));
+                 base::RetainedRef(base::ThreadTaskRunnerHandle::Get()),
+                 base::RetainedRef(context_), callback));
 }
 
 void DOMStorageContextWrapper::GetSessionStorageUsage(
@@ -102,7 +103,8 @@ void DOMStorageContextWrapper::GetSessionStorageUsage(
   context_->task_runner()->PostShutdownBlockingTask(
       FROM_HERE, DOMStorageTaskRunner::PRIMARY_SEQUENCE,
       base::Bind(&GetSessionStorageUsageHelper,
-                 base::ThreadTaskRunnerHandle::Get(), context_, callback));
+                 base::RetainedRef(base::ThreadTaskRunnerHandle::Get()),
+                 base::RetainedRef(context_), callback));
 }
 
 void DOMStorageContextWrapper::DeleteLocalStorage(const GURL& origin) {