PlzNavigate data pipe

content/browser/frame_host/navigation_request.h

Index: content/browser/frame_host/navigation_request.h
diff --git a/content/browser/frame_host/navigation_request.h b/content/browser/frame_host/navigation_request.h
index 2d9b1c04d3ce19f3688a6693205dfbc33d614248..2a142f151045e4f2be5eea479518c67452c82e67 100644
--- a/content/browser/frame_host/navigation_request.h
+++ b/content/browser/frame_host/navigation_request.h
@@ -18,6 +18,7 @@
 #include "content/common/navigation_params.h"
 #include "content/public/browser/navigation_throttle.h"
 #include "content/public/common/previews_state.h"
+#include "mojo/public/cpp/system/data_pipe.h"
 
 namespace content {
 
@@ -29,7 +30,6 @@ class NavigationURLLoader;
 class NavigationData;
 class ResourceRequestBody;
 class SiteInstanceImpl;
-class StreamHandle;
 
 // PlzNavigate
 // A UI thread object that owns a navigation request until it commits. It
@@ -182,7 +182,7 @@ class CONTENT_EXPORT NavigationRequest : public NavigationURLLoaderDelegate {
       const net::RedirectInfo& redirect_info,
       const scoped_refptr<ResourceResponse>& response) override;
   void OnResponseStarted(const scoped_refptr<ResourceResponse>& response,
-                         std::unique_ptr<StreamHandle> body,
+                         mojo::ScopedDataPipeConsumerHandle handle,
                          const SSLStatus& ssl_status,
                          std::unique_ptr<NavigationData> navigation_data,
                          const GlobalRequestID& request_id,
@@ -249,10 +249,11 @@ class CONTENT_EXPORT NavigationRequest : public NavigationURLLoaderDelegate {
 
   std::unique_ptr<NavigationHandleImpl> navigation_handle_;
 
-  // Holds the ResourceResponse and the StreamHandle for the navigation while
-  // the WillProcessResponse checks are performed by the NavigationHandle.
+  // Holds the ResourceResponse and the DataPipeConsumerHandle for the
+  // navigation while the WillProcessResponse checks are performed
+  // by the NavigationHandle.
   scoped_refptr<ResourceResponse> response_;
-  std::unique_ptr<StreamHandle> body_;
+  mojo::ScopedDataPipeConsumerHandle handle_;
 
   base::Closure on_start_checks_complete_closure_;