Remove SupportsUserData from ResourceRequestBodyImpl.

content/browser/loader/resource_dispatcher_host_impl.h

Index: content/browser/loader/resource_dispatcher_host_impl.h
diff --git a/content/browser/loader/resource_dispatcher_host_impl.h b/content/browser/loader/resource_dispatcher_host_impl.h
index 70f377e30619a43c1c6872efd39212591199572b..7635d9cdf483aa5d0763d0465b4625b5c5b17b2b 100644
--- a/content/browser/loader/resource_dispatcher_host_impl.h
+++ b/content/browser/loader/resource_dispatcher_host_impl.h
@@ -26,6 +26,7 @@
 #include "base/observer_list.h"
 #include "base/single_thread_task_runner.h"
 #include "base/time/time.h"
+#include "content/browser/blob_storage/chrome_blob_storage_context.h"
 #include "content/browser/loader/global_routing_id.h"
 #include "content/browser/loader/resource_loader_delegate.h"
 #include "content/common/content_export.h"
@@ -593,6 +594,7 @@ class CONTENT_EXPORT ResourceDispatcherHostImpl
       const net::HttpRequestHeaders& headers,
       mojom::URLLoaderAssociatedRequest mojo_request,
       mojom::URLLoaderClientPtr url_loader_client,
+      std::unique_ptr<BlobHandles> blob_handles,
       HeaderInterceptorResult interceptor_result);
 
   // Creates a ResourceHandler to be used by BeginRequest() for normal resource