Support Service Worker NavigationPreload with PlzNavigate.

content/public/browser/render_process_host.h

Index: content/public/browser/render_process_host.h
diff --git a/content/public/browser/render_process_host.h b/content/public/browser/render_process_host.h
index b2b7df69039177c494fc9f48df07cbd05bc2cf46..7415b020bdd2416e83f50160f40936bed941b3de 100644
--- a/content/public/browser/render_process_host.h
+++ b/content/public/browser/render_process_host.h
@@ -10,6 +10,7 @@
 
 #include <list>
 
+#include "base/callback_forward.h"
 #include "base/id_map.h"
 #include "base/memory/ptr_util.h"
 #include "base/process/kill.h"
@@ -18,6 +19,7 @@
 #include "content/common/content_export.h"
 #include "ipc/ipc_channel_proxy.h"
 #include "ipc/ipc_sender.h"
+#include "mojo/public/cpp/bindings/interface_request.h"
 #include "ui/gfx/native_widget_types.h"
 
 class GURL;
@@ -47,6 +49,7 @@ struct GlobalRequestID;
 
 namespace mojom {
 class Renderer;
+class URLLoaderFactory;
 }
 
 // Interface that represents the browser side of the browser <-> renderer
@@ -57,6 +60,8 @@ class CONTENT_EXPORT RenderProcessHost : public IPC::Sender,
                                          public base::SupportsUserData {
  public:
   typedef IDMap<RenderProcessHost>::iterator iterator;
+  using MojoURLLoaderFactoryGetter =
+      base::Callback<void(mojo::InterfaceRequest<mojom::URLLoaderFactory>)>;
 
   // Details for RENDERER_PROCESS_CLOSED notifications.
   struct RendererClosedDetails {
@@ -331,6 +336,9 @@ class CONTENT_EXPORT RenderProcessHost : public IPC::Sender,
   // MockRenderProcessHost usage in tests.
   virtual mojom::Renderer* GetRendererInterface() = 0;
 
+  // Creates a MojoURLLoaderFactoryGetter associated with the process.
+  virtual MojoURLLoaderFactoryGetter CreateURLLoaderFactoryGetter() = 0;
+
   // Returns the current number of active views in this process.  Excludes
   // any RenderViewHosts that are swapped out.
   size_t GetActiveViewCount();