Delete NetworkingContext and its subclasses.

Source/core/loader/FrameLoaderClient.h

Index: Source/core/loader/FrameLoaderClient.h
diff --git a/Source/core/loader/FrameLoaderClient.h b/Source/core/loader/FrameLoaderClient.h
index b1a6a1ed1b228af53c97d4276068fecf3f5ab68a..1a41b4c7cc332425d1517558e2d378a8dcc29c3e 100644
--- a/Source/core/loader/FrameLoaderClient.h
+++ b/Source/core/loader/FrameLoaderClient.h
@@ -44,6 +44,10 @@ class Context;
 template<class T> class Handle;
 }
 
+namespace WebKit {
+class WebCookieJar;
+}
+
 namespace WebCore {
 
     class CachedResourceRequest;
@@ -219,7 +223,7 @@ namespace WebCore {
         // This callback is similar, but for plugins.
         virtual void didNotAllowPlugins() { }
 
-        virtual PassRefPtr<FrameNetworkingContext> createNetworkingContext() = 0;
+        virtual WebKit::WebCookieJar* cookieJar() const = 0;
 
         // Returns true if the embedder intercepted the postMessage call
         virtual bool willCheckAndDispatchMessageEvent(SecurityOrigin* /*target*/, MessageEvent*) const { return false; }