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diff --git a/content/shell/renderer/test_runner/MockWebSpeechRecognizer.h b/content/shell/renderer/test_runner/MockWebSpeechRecognizer.h
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+++ b/content/shell/renderer/test_runner/MockWebSpeechRecognizer.h
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+// Copyright 2013 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 MockWebSpeechRecognizer_h
+#define MockWebSpeechRecognizer_h
+
+#include <deque>
+#include <vector>
+
+#include "content/shell/renderer/test_runner/TestCommon.h"
+#include "content/shell/renderer/test_runner/WebTask.h"
+#include "third_party/WebKit/public/platform/WebNonCopyable.h"
+#include "third_party/WebKit/public/web/WebSpeechRecognizer.h"
+
+namespace blink {
+class WebSpeechRecognitionHandle;
+class WebSpeechRecognitionParams;
+class WebSpeechRecognizerClient;
+}
+
+namespace WebTestRunner {
+
+class WebTestDelegate;
+
+class MockWebSpeechRecognizer : public blink::WebSpeechRecognizer, public blink::WebNonCopyable {
+public:
+    MockWebSpeechRecognizer();
+    ~MockWebSpeechRecognizer();
+
+    void setDelegate(WebTestDelegate*);
+
+    // WebSpeechRecognizer implementation:
+    virtual void start(const blink::WebSpeechRecognitionHandle&, const blink::WebSpeechRecognitionParams&, blink::WebSpeechRecognizerClient*) OVERRIDE;
+    virtual void stop(const blink::WebSpeechRecognitionHandle&, blink::WebSpeechRecognizerClient*) OVERRIDE;
+    virtual void abort(const blink::WebSpeechRecognitionHandle&, blink::WebSpeechRecognizerClient*) OVERRIDE;
+
+    // Methods accessed by layout tests:
+    void addMockResult(const blink::WebString& transcript, float confidence);
+    void setError(const blink::WebString& error, const blink::WebString& message);
+    bool wasAborted() const { return m_wasAborted; }
+
+    // Methods accessed from Task objects:
+    blink::WebSpeechRecognizerClient* client() { return m_client; }
+    blink::WebSpeechRecognitionHandle& handle() { return m_handle; }
+    WebTaskList* taskList() { return &m_taskList; }
+
+    class Task {
+    public:
+        Task(MockWebSpeechRecognizer* recognizer) : m_recognizer(recognizer) { }
+        virtual ~Task() { }
+        virtual void run() = 0;
+    protected:
+        MockWebSpeechRecognizer* m_recognizer;
+    };
+
+private:
+    void startTaskQueue();
+    void clearTaskQueue();
+
+    WebTaskList m_taskList;
+    blink::WebSpeechRecognitionHandle m_handle;
+    blink::WebSpeechRecognizerClient* m_client;
+    std::vector<blink::WebString> m_mockTranscripts;
+    std::vector<float> m_mockConfidences;
+    bool m_wasAborted;
+
+    // Queue of tasks to be run.
+    std::deque<Task*> m_taskQueue;
+    bool m_taskQueueRunning;
+
+    WebTestDelegate* m_delegate;
+
+    // Task for stepping the queue.
+    class StepTask : public WebMethodTask<MockWebSpeechRecognizer> {
+    public:
+        StepTask(MockWebSpeechRecognizer* object) : WebMethodTask<MockWebSpeechRecognizer>(object) { }
+        virtual void runIfValid() OVERRIDE;
+    };
+};
+
+}
+
+#endif // MockWebSpeechRecognizer_h