Stop linking in the old Mojo EDK.

ipc/ipc_test_base.h

Index: ipc/ipc_test_base.h
diff --git a/ipc/ipc_test_base.h b/ipc/ipc_test_base.h
index 360188f6a5b606ef5c9786b6bf71c01d1009e6cc..f03349c18198f5799984d75841f57cc367ae4708 100644
--- a/ipc/ipc_test_base.h
+++ b/ipc/ipc_test_base.h
@@ -106,11 +106,12 @@ class IPCTestBase : public base::MultiProcessTest {
   IPC::ChannelProxy* channel_proxy() { return channel_proxy_.get(); }
 
   const base::Process& client_process() const { return client_process_; }
-  scoped_refptr<base::SequencedTaskRunner> task_runner();
+  virtual scoped_refptr<base::TaskRunner> io_task_runner();
 
   virtual scoped_ptr<IPC::ChannelFactory> CreateChannelFactory(
-      const IPC::ChannelHandle& handle, base::SequencedTaskRunner* runner);
+      const IPC::ChannelHandle& handle, base::TaskRunner* runner);
 
+  virtual void AboutToSpawnChild(base::LaunchOptions* options) {}
   virtual bool DidStartClient();
 
  private: