[Mojo-Loading] OnStartLoadingResponseBody should be called after OnReceiveResponse

content/browser/loader/mojo_async_resource_handler.h

Index: content/browser/loader/mojo_async_resource_handler.h
diff --git a/content/browser/loader/mojo_async_resource_handler.h b/content/browser/loader/mojo_async_resource_handler.h
index ebb38b2f3da220cf986b8ff2e49a4fd40deb8c2c..2a8c9b5286ede7324000f91f5e3281d4ba419c58 100644
--- a/content/browser/loader/mojo_async_resource_handler.h
+++ b/content/browser/loader/mojo_async_resource_handler.h
@@ -18,6 +18,7 @@
 #include "content/common/content_export.h"
 #include "content/common/url_loader.mojom.h"
 #include "mojo/public/cpp/bindings/associated_binding.h"
+#include "mojo/public/cpp/system/data_pipe.h"
 #include "mojo/public/cpp/system/watcher.h"
 #include "net/base/io_buffer.h"
 #include "url/gurl.h"
@@ -121,6 +122,7 @@ class CONTENT_EXPORT MojoAsyncResourceHandler
   size_t buffer_offset_ = 0;
   size_t buffer_bytes_read_ = 0;
   scoped_refptr<SharedWriter> shared_writer_;
+  mojo::ScopedDataPipeConsumerHandle response_body_consumer_handle_;
 
   base::WeakPtrFactory<MojoAsyncResourceHandler> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(MojoAsyncResourceHandler);