Shutdown StoragePartition before ProfileIOData is being shut down

content/browser/storage_partition_impl.h

Index: content/browser/storage_partition_impl.h
diff --git a/content/browser/storage_partition_impl.h b/content/browser/storage_partition_impl.h
index 49b8d14b2d6f4d127077d679841855bfb1b68f61..9a8ff9ba2a1797e32ae96d0c961ee31ea5550b94 100644
--- a/content/browser/storage_partition_impl.h
+++ b/content/browser/storage_partition_impl.h
@@ -34,6 +34,9 @@ class CONTENT_EXPORT  StoragePartitionImpl
     : public StoragePartition,
       public NON_EXPORTED_BASE(mojom::StoragePartitionService) {
  public:
+  // It is guaranteed that storage partitions are destructed before the
+  // browser context starts shutting down its corresponding IO thread residents
+  // (e.g. resource context).
   ~StoragePartitionImpl() override;
 
   // Quota managed data uses a different bitmask for types than