Delegate WebSocket message handlers to the loading task runner

content/child/websocket_dispatcher.h

Index: content/child/websocket_dispatcher.h
diff --git a/content/child/websocket_dispatcher.h b/content/child/websocket_dispatcher.h
index e40053de41ca0a7e328185e93e110a4a8be932ba..00d35e510f00ad84f665f8c2c1b0fb5b2668c44e 100644
--- a/content/child/websocket_dispatcher.h
+++ b/content/child/websocket_dispatcher.h
@@ -12,6 +12,8 @@
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/single_thread_task_runner.h"
 #include "ipc/ipc_listener.h"
 
 namespace content {
@@ -34,11 +36,16 @@ class WebSocketDispatcher : public IPC::Listener {
   // IPC::Listener implementation.
   bool OnMessageReceived(const IPC::Message& msg) override;
 
+  void SetLoadingTaskRunner(scoped_refptr<base::SingleThreadTaskRunner>
+                            loading_task_runner);
+
  private:
   WebSocketBridge* GetBridge(int channel_id, uint32_t type);
+  void OnMessageReceivedOnLoadingTaskRunner(IPC::Message msg);
 
   std::map<int, WebSocketBridge*> bridges_;
   int channel_id_max_;
+  scoped_refptr<base::SingleThreadTaskRunner> loading_task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(WebSocketDispatcher);
 };