PROTOTYPE: PlzNavigate: use a Mojo data pipe to stream navigation data to the renderer.

content/browser/loader/navigation_url_loader_impl_core.h

Index: content/browser/loader/navigation_url_loader_impl_core.h
diff --git a/content/browser/loader/navigation_url_loader_impl_core.h b/content/browser/loader/navigation_url_loader_impl_core.h
index b12629d92f23468ddee1f7f52d8c372ec5943622..ceabe9bcb9719471aa288bd5f7e0f2ce31f4cd83 100644
--- a/content/browser/loader/navigation_url_loader_impl_core.h
+++ b/content/browser/loader/navigation_url_loader_impl_core.h
@@ -9,6 +9,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "content/browser/loader/navigation_url_loader_impl.h"
+#include "mojo/public/cpp/system/data_pipe.h"
 
 namespace net {
 class URLRequest;
@@ -55,8 +56,10 @@ class NavigationURLLoaderImplCore {
                                ResourceResponse* response);
 
   // Notifies |loader_| on the UI thread that the response started.
-  void NotifyResponseStarted(ResourceResponse* response,
-                             scoped_ptr<StreamHandle> body);
+  void NotifyResponseStarted(
+      ResourceResponse* response,
+      mojo::ScopedDataPipeConsumerHandle data_consumer_handle,
+      int request_id);
 
   // Notifies |loader_| on the UI thread that the request failed.
   void NotifyRequestFailed(bool in_cache, int net_error);