Remove stale-while-revalidate from blink

third_party/WebKit/Source/platform/network/HTTPParsers.h

Index: third_party/WebKit/Source/platform/network/HTTPParsers.h
diff --git a/third_party/WebKit/Source/platform/network/HTTPParsers.h b/third_party/WebKit/Source/platform/network/HTTPParsers.h
index f6b2b5fd7c30773311618429cd73489ccf8e18c4..a2094bf3b2d7c6d2df5fce7b3c6384596b635734 100644
--- a/third_party/WebKit/Source/platform/network/HTTPParsers.h
+++ b/third_party/WebKit/Source/platform/network/HTTPParsers.h
@@ -79,15 +79,13 @@ struct CacheControlHeader {
   bool containsNoStore : 1;
   bool containsMustRevalidate : 1;
   double maxAge;
-  double staleWhileRevalidate;
 
   CacheControlHeader()
       : parsed(false),
         containsNoCache(false),
         containsNoStore(false),
         containsMustRevalidate(false),
-        maxAge(0.0),
-        staleWhileRevalidate(0.0) {}
+        maxAge(0.0) {}
 };
 
 PLATFORM_EXPORT ContentDispositionType getContentDispositionType(const String&);