Remove interface directories kept to avoid breaking downstream.

webrtc/modules/utility/interface/mock/mock_process_thread.h

-/*
- *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#ifndef WEBRTC_MODULES_UTILITY_INCLUDE_MOCK_MOCK_PROCESS_THREAD_H_
-#define WEBRTC_MODULES_UTILITY_INCLUDE_MOCK_MOCK_PROCESS_THREAD_H_
-
-#pragma message("WARNING: utility/interface is DEPRECATED; use utility/include")
-
-#include "webrtc/modules/utility/include/process_thread.h"
-
-#include "testing/gmock/include/gmock/gmock.h"
-
-namespace webrtc {
-
-class MockProcessThread : public ProcessThread {
- public:
-  MOCK_METHOD0(Start, void());
-  MOCK_METHOD0(Stop, void());
-  MOCK_METHOD1(WakeUp, void(Module* module));
-  MOCK_METHOD1(PostTask, void(ProcessTask* task));
-  MOCK_METHOD1(RegisterModule, void(Module* module));
-  MOCK_METHOD1(DeRegisterModule, void(Module* module));
-
-  // MOCK_METHOD1 gets confused with mocking this method, so we work around it
-  // by overriding the method from the interface and forwarding the call to a
-  // mocked, simpler method.
-  void PostTask(rtc::scoped_ptr<ProcessTask> task) override {
-    PostTask(task.get());
-  }
-};
-
-}  // namespace webrtc
-#endif  // WEBRTC_MODULES_UTILITY_INCLUDE_MOCK_MOCK_PROCESS_THREAD_H_