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..1ab85e3afbd65e8483306712829fa72dc9034a7b 100644
--- a/content/browser/loader/resource_request_info_impl.h
+++ b/content/browser/loader/resource_request_info_impl.h
@@ -8,6 +8,7 @@
 #include <string>
 
 #include "base/basictypes.h"
+#include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
@@ -51,6 +52,7 @@ 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 +125,17 @@ 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.
+  bool is_detachable() const { return is_detachable_; }
+  void set_is_detachable(bool is_detachable) { is_detachable_ = is_detachable; }
+
+  // Detached resources are detachable resources that have ignored a request by
+  // the renderer to cancel and will continue to fetch but stops sending
+  // messages to the renderer. Detached resources eventually timeout.
+  bool is_detached() const { return is_detached_; }
+  void set_detached() { is_detached_ = true; }
+
   void set_was_ignored_by_handler(bool value) {
     was_ignored_by_handler_ = value;
   }
@@ -133,6 +146,10 @@ class ResourceRequestInfoImpl : public ResourceRequestInfo,
   void set_memory_cost(int cost) { memory_cost_ = cost; }
 
  private:
+  FRIEND_TEST_ALL_PREFIXES(ResourceDispatcherHostTest,
+                           DeletedFilterDetachable);
+  FRIEND_TEST_ALL_PREFIXES(ResourceDispatcherHostTest,
+                           DeletedFilterDetachableRedirect);
   // Non-owning, may be NULL.
   CrossSiteResourceHandler* cross_site_handler_;
 
@@ -147,6 +164,8 @@ class ResourceRequestInfoImpl : public ResourceRequestInfo,
   int64 parent_frame_id_;
   bool is_download_;
   bool is_stream_;
+  bool is_detachable_;
+  bool is_detached_;
   bool allow_download_;
   bool has_user_gesture_;
   bool was_ignored_by_handler_;