Retry to add MockPresentationClient to use in layout tests.

content/shell/renderer/test_runner/mock_presentation_client.h

Index: content/shell/renderer/test_runner/mock_presentation_client.h
diff --git a/content/shell/renderer/test_runner/mock_presentation_client.h b/content/shell/renderer/test_runner/mock_presentation_client.h
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+++ b/content/shell/renderer/test_runner/mock_presentation_client.h
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+// 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 {
+
+class MockPresentationService;
+
+// A mock implementation of WebPresentationClient to be used in tests with
+// content shell. One instance exists per frame, owned by the WebFrameTestProxy.
+// Must be registered with MockPresentationService to get the mock calls from
+// the test page.
+class MockPresentationClient : public blink::WebPresentationClient {
+ public:
+  explicit MockPresentationClient(MockPresentationService* service);
+  virtual ~MockPresentationClient();
+
+  // Used to imitate the screen availability change by the tests.
+  void SetScreenAvailability(bool available);
+
+  // Resets the client test state to the defaults for the next test.
+  void Reset();
+
+  // blink::WebPresentationClient implementation.
+  virtual void setController(blink::WebPresentationController* controller);
+  virtual void updateAvailableChangeWatched(bool watched);
+
+ private:
+  // The actual WebPresentationController implementation that's being tested.
+  // Lives within the same frame as the presentation client.
+  blink::WebPresentationController* controller_;
+
+  // The last known state of the screen availability. Defaults to false.
+  bool screen_availability_;
+
+  // The common mock service for all mock clients within the same RenderView.
+  // Used to register/unregister itself from.
+  MockPresentationService* service_;
+
+  DISALLOW_COPY_AND_ASSIGN(MockPresentationClient);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_SHELL_RENDERER_TEST_RUNNER_MOCK_PRESENTATION_CLIENT_H_