Allows prefetch requests to live beyond the renderer by delaying

content/browser/loader/resource_loader.h

Index: content/browser/loader/resource_loader.h
diff --git a/content/browser/loader/resource_loader.h b/content/browser/loader/resource_loader.h
index 6a611a723f5815b8a29fe9984552003b38f9b25a..589c66c6066203d0ad07e2c0220e952369f621a6 100644
--- a/content/browser/loader/resource_loader.h
+++ b/content/browser/loader/resource_loader.h
@@ -8,6 +8,7 @@
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
+#include "base/timer/timer.h"
 #include "content/browser/loader/resource_handler.h"
 #include "content/browser/ssl/ssl_error_handler.h"
 #include "content/common/content_export.h"
@@ -97,6 +98,8 @@ class CONTENT_EXPORT ResourceLoader : public net::URLRequest::Delegate,
 
   void StartRequestInternal();
   void CancelRequestInternal(int error, bool from_renderer);
+  bool DelayCancelForPrefetch(const ResourceRequestInfoImpl& info,
+                              bool from_renderer);
   void CompleteResponseStarted();
   void StartReading(bool is_continuation);
   void ResumeReading();
@@ -133,10 +136,16 @@ class CONTENT_EXPORT ResourceLoader : public net::URLRequest::Delegate,
   // which point we'll receive a new ResourceHandler.
   bool is_transferring_;
 
+  scoped_ptr<base::OneShotTimer<ResourceLoader> > prefetch_timer_;
+
   scoped_ptr<net::ClientCertStore> client_cert_store_;
 
   base::WeakPtrFactory<ResourceLoader> weak_ptr_factory_;

[mmenke, 2013/10/08 14:50:54]

WeakPtrFactories should always go last.  The static won't cause a problem, of
course, but it may cause someone else who adds something to this class to
overlook the factory.

[jkarlin2, 2013/10/09 14:44:33]

Done.

 
+  // The time in ms to delay a cancel of a prefetch unless otherwise specified
+  // by a flag.
+  static int default_delay_prefetch_cancel_ms_;
+
   DISALLOW_COPY_AND_ASSIGN(ResourceLoader);
 };