Delete NetworkingContext and its subclasses.

Source/core/platform/network/ResourceHandleInternal.h

Index: Source/core/platform/network/ResourceHandleInternal.h
diff --git a/Source/core/platform/network/ResourceHandleInternal.h b/Source/core/platform/network/ResourceHandleInternal.h
index 2f65d2f66521a16fa4c8cb33c159c2d58b40a08d..8fd96689159dad08e8bd927a6ec5136675e5a8c0 100644
--- a/Source/core/platform/network/ResourceHandleInternal.h
+++ b/Source/core/platform/network/ResourceHandleInternal.h
@@ -39,13 +39,12 @@
 
 namespace WebCore {
 
-class NetworkingContext;
 class ResourceHandle;
 class ResourceHandleClient;
 
 class ResourceHandleInternal : public WebKit::WebURLLoaderClient {
 public:
-    ResourceHandleInternal(NetworkingContext*, const ResourceRequest&, ResourceHandleClient*);
+    ResourceHandleInternal(const ResourceRequest&, ResourceHandleClient*);
 
     virtual ~ResourceHandleInternal() { }
 
@@ -80,12 +79,10 @@ public:
     ResourceHandleClient* client() const { return m_client; }
     void setClient(ResourceHandleClient* client) { m_client = client; }
     WebKit::WebURLLoader* loader() const { return m_loader.get(); }
-    NetworkingContext* context() const { return m_context.get(); }
 
     static ResourceHandleInternal* FromResourceHandle(ResourceHandle*);
 
 private:
-    RefPtr<NetworkingContext> m_context;
     ResourceRequest m_request;
     ResourceHandle* m_owner;
     ResourceHandleClient* m_client;