Allows prefetch requests to live beyond the renderer by delaying

content/browser/loader/resource_request_info_impl.h

Index: content/browser/loader/resource_request_info_impl.h
diff --git a/content/browser/loader/resource_request_info_impl.h b/content/browser/loader/resource_request_info_impl.h
index 6947315aa4c436bd5229336d669cef4b125e25e7..807f3658e1ab90d49c5568457f1fe3f996f5ed3f 100644
--- a/content/browser/loader/resource_request_info_impl.h
+++ b/content/browser/loader/resource_request_info_impl.h
@@ -51,6 +51,7 @@ class ResourceRequestInfoImpl : public ResourceRequestInfo,
       PageTransition transition_type,
       bool is_download,
       bool is_stream,
+      bool is_detachable,
       bool allow_download,
       bool has_user_gesture,
       WebKit::WebReferrerPolicy referrer_policy,
@@ -123,6 +124,11 @@ class ResourceRequestInfoImpl : public ResourceRequestInfo,
   bool is_stream() const { return is_stream_; }
   void set_is_stream(bool stream) { is_stream_ = stream; }
 
+  // Whether this is a detachable resource. Detachable resource requests can
+  // live beyond the life of the renderer.

[asanka, 2013/10/14 21:06:49]

Nit: In practice this flag means the request is already detached and not just
whether the request can be detached. I'd go with is_detached().

+  bool is_detachable() const { return is_detachable_; }
+  void set_is_detachable(bool is_detachable) { is_detachable_ = is_detachable; }
+
   void set_was_ignored_by_handler(bool value) {
     was_ignored_by_handler_ = value;
   }
@@ -147,6 +153,7 @@ class ResourceRequestInfoImpl : public ResourceRequestInfo,
   int64 parent_frame_id_;
   bool is_download_;
   bool is_stream_;
+  bool is_detachable_;
   bool allow_download_;
   bool has_user_gesture_;
   bool was_ignored_by_handler_;