Revert of Added MockPresentationClient to use in layout tests.

content/shell/renderer/test_runner/mock_presentation_client.h

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CONTENT_SHELL_RENDERER_TEST_RUNNER_MOCK_PRESENTATION_CLIENT_H_
-#define CONTENT_SHELL_RENDERER_TEST_RUNNER_MOCK_PRESENTATION_CLIENT_H_
-
-#include "base/macros.h"
-#include "third_party/WebKit/public/platform/modules/presentation/WebPresentationClient.h"
-
-namespace content {
-
-// A mock implementation of WebPresentationClient to be used in tests with
-// content shell.
-class MockPresentationClient : public blink::WebPresentationClient {
- public:
-  explicit MockPresentationClient();
-  virtual ~MockPresentationClient();
-
-  void SetScreenAvailability(bool available);
-
- private:
-  // From blink::WebPresentationClient.
-  // Passes the Blink-side delegate to the embedder.
-  virtual void setController(blink::WebPresentationController*);
-
-  // Called when the frame attaches the first event listener to or removes the
-  // last event listener from the |availablechange| event.
-  virtual void updateAvailableChangeWatched(bool watched);
-
-  blink::WebPresentationController* controller_;
-  bool screen_availability_;
-
-  DISALLOW_COPY_AND_ASSIGN(MockPresentationClient);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_SHELL_RENDERER_TEST_RUNNER_MOCK_PRESENTATION_CLIENT_H_