Modify ResourceMessageFilter so that it can support attaching to PluginProcessHost.

content/browser/worker_host/worker_process_host.h

Index: content/browser/worker_host/worker_process_host.h
===================================================================
--- content/browser/worker_host/worker_process_host.h	(revision 222038)
+++ content/browser/worker_host/worker_process_host.h	(working copy)
@@ -20,11 +20,18 @@
 #include "content/public/common/process_type.h"
 #include "ipc/ipc_sender.h"
 #include "url/gurl.h"
+#include "webkit/common/resource_type.h"
 
+struct ResourceHostMsg_Request;
+
 namespace fileapi {
 class FileSystemContext;
 }  // namespace fileapi
 
+namespace net {
+class URLRequestContext;
+}
+
 namespace webkit_database {
 class DatabaseTracker;
 }  // namespace webkit_database
@@ -218,6 +225,12 @@
   // given worker.
   std::vector<std::pair<int, int> > GetRenderViewIDsForWorker(int route_id);
 
+  // Callbacks for ResourceMessageFilter and SocketStreamDispatcherHost.
+  void GetContexts(const ResourceHostMsg_Request& request,
+                   ResourceContext** resource_context,
+                   net::URLRequestContext** request_context);
+  net::URLRequestContext* GetRequestContext(ResourceType::Type resource_type);
+
   Instances instances_;
 
   ResourceContext* const resource_context_;