webapk: Avoid overwriting default CreationParams

content/browser/renderer_host/render_process_host_impl.h

Index: content/browser/renderer_host/render_process_host_impl.h
diff --git a/content/browser/renderer_host/render_process_host_impl.h b/content/browser/renderer_host/render_process_host_impl.h
index b7bc73347e58e8aba19455838a8930685783c3c5..5f8f114ae63abef39f75cd436ba4ac008fb2e7d2 100644
--- a/content/browser/renderer_host/render_process_host_impl.h
+++ b/content/browser/renderer_host/render_process_host_impl.h
@@ -111,7 +111,8 @@ class CONTENT_EXPORT RenderProcessHostImpl
  public:
   RenderProcessHostImpl(BrowserContext* browser_context,
                         StoragePartitionImpl* storage_partition_impl,
-                        bool is_for_guests_only);
+                        bool is_for_guests_only,
+                        int child_process_param_id);
   ~RenderProcessHostImpl() override;
 
   // RenderProcessHost implementation (public portion).
@@ -506,6 +507,9 @@ class CONTENT_EXPORT RenderProcessHostImpl
   // The globally-unique identifier for this RPH.
   const int id_;
 
+  // An opaque id used passed to ChildProcessLauncher to launch child processes.
+  const int child_process_param_id_;
+
   // A secondary ID used by the Service Manager to distinguish different
   // incarnations of the same RPH from each other. Unlike |id_| this is not
   // globally unique, but it is guaranteed to change every time ProcessDied() is