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

content/browser/loader/navigation_url_loader_impl.h

Index: content/browser/loader/navigation_url_loader_impl.h
diff --git a/content/browser/loader/navigation_url_loader_impl.h b/content/browser/loader/navigation_url_loader_impl.h
index 5c7fcd0d2b01160cd5980a10fbf4cb299d2139fa..5d7d1bfc00639acc49347fbf81e2698dceec6100 100644
--- a/content/browser/loader/navigation_url_loader_impl.h
+++ b/content/browser/loader/navigation_url_loader_impl.h
@@ -11,6 +11,7 @@
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "content/browser/loader/navigation_url_loader.h"
+#include "mojo/public/cpp/system/data_pipe.h"
 
 namespace net {
 struct RedirectInfo;
@@ -44,8 +45,10 @@ class NavigationURLLoaderImpl : public NavigationURLLoader {
                                const scoped_refptr<ResourceResponse>& response);
 
   // Notifies the delegate that the response has started.
-  void NotifyResponseStarted(const scoped_refptr<ResourceResponse>& response,
-                             scoped_ptr<StreamHandle> body);
+  void NotifyResponseStarted(
+      const scoped_refptr<ResourceResponse>& response,
+      mojo::ScopedDataPipeConsumerHandle data_consumer_handle,
+      int request_id);
 
   // Notifies the delegate the request failed to return a response.
   void NotifyRequestFailed(bool in_cache, int net_error);