Start removing support for the experimental x-webkit-speech API

chrome/browser/speech/speech_recognition_bubble_controller.h

-// Copyright (c) 2012 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 CHROME_BROWSER_SPEECH_SPEECH_RECOGNITION_BUBBLE_CONTROLLER_H_
-#define CHROME_BROWSER_SPEECH_SPEECH_RECOGNITION_BUBBLE_CONTROLLER_H_
-
-#include "base/basictypes.h"
-#include "base/memory/ref_counted.h"
-#include "base/synchronization/lock.h"
-#include "chrome/browser/speech/speech_recognition_bubble.h"
-#include "ui/gfx/rect.h"
-
-namespace speech {
-
-// This class handles the speech recognition popup UI on behalf of
-// SpeechRecognitionManager, which invokes methods on the IO thread, processing
-// those requests on the UI thread. At most one bubble can be active.
-class SpeechRecognitionBubbleController
-    : public base::RefCountedThreadSafe<SpeechRecognitionBubbleController>,
-      public SpeechRecognitionBubbleDelegate {
- public:
-  // All methods of this delegate are called on the IO thread.
-  class Delegate {
-   public:
-    // Invoked when the user clicks on a button in the speech recognition UI.
-    virtual void InfoBubbleButtonClicked(
-        int session_id, SpeechRecognitionBubble::Button button) = 0;
-
-    // Invoked when the user clicks outside the speech recognition info bubble
-    // causing it to close and input focus to change.
-    virtual void InfoBubbleFocusChanged(int session_id) = 0;
-
-   protected:
-    virtual ~Delegate() {}
-  };
-
-  explicit SpeechRecognitionBubbleController(Delegate* delegate);
-
-  // Creates and shows a new speech recognition UI bubble in warmup mode.
-  void CreateBubble(int session_id,
-                    int render_process_id,
-                    int render_view_id,
-                    const gfx::Rect& element_rect);
-
-  // Indicates to the user that audio recording is in progress.
-  void SetBubbleRecordingMode();
-
-  // Indicates to the user that recognition is in progress.
-  void SetBubbleRecognizingMode();
-
-  // Displays the given string with the 'Try again' and 'Cancel' buttons.
-  void SetBubbleMessage(const base::string16& text);
-
-  // Checks whether the bubble is active and is showing a message.
-  bool IsShowingMessage() const;
-
-  // Updates the current captured audio volume displayed on screen.
-  void SetBubbleInputVolume(float volume, float noise_volume);
-
-  // Closes the bubble.
-  void CloseBubble();
-
-  // This is the only method that can be called from the UI thread.
-  void CloseBubbleForRenderViewOnUIThread(int render_process_id,
-                                          int render_view_id);
-
-  // Retrieves the session ID associated to the active bubble (if any).
-  // Returns 0 if no bubble is currently shown.
-  int GetActiveSessionID();
-
-  // SpeechRecognitionBubble::Delegate methods.
-  virtual void InfoBubbleButtonClicked(
-      SpeechRecognitionBubble::Button button) OVERRIDE;
-  virtual void InfoBubbleFocusChanged() OVERRIDE;
-
- private:
-  friend class base::RefCountedThreadSafe<SpeechRecognitionBubbleController>;
-
-  // The various calls received by this object and handled on the UI thread.
-  enum RequestType {
-    REQUEST_CREATE,
-    REQUEST_SET_RECORDING_MODE,
-    REQUEST_SET_RECOGNIZING_MODE,
-    REQUEST_SET_MESSAGE,
-    REQUEST_SET_INPUT_VOLUME,
-    REQUEST_CLOSE,
-  };
-
-  struct UIRequest {
-    RequestType type;
-    base::string16 message;
-    gfx::Rect element_rect;
-    float volume;
-    float noise_volume;
-    int render_process_id;
-    int render_view_id;
-
-    explicit UIRequest(RequestType type_value);
-    ~UIRequest();
-  };
-
-  virtual ~SpeechRecognitionBubbleController();
-
-  void InvokeDelegateButtonClicked(SpeechRecognitionBubble::Button button);
-  void InvokeDelegateFocusChanged();
-  void ProcessRequestInUiThread(const UIRequest& request);
-
-  // The following are accessed only on the IO thread.
-  Delegate* delegate_;
-  RequestType last_request_issued_;
-
-  // The following are accessed only on the UI thread.
-  scoped_ptr<SpeechRecognitionBubble> bubble_;
-
-  // The following are accessed on both IO and  UI threads.
-  base::Lock lock_;
-
-  // The session id for currently visible bubble.
-  int current_bubble_session_id_;
-
-  // The render process and view ids for the currently visible bubble.
-  int current_bubble_render_process_id_;
-  int current_bubble_render_view_id_;
-};
-
-// This typedef is to workaround the issue with certain versions of
-// Visual Studio where it gets confused between multiple Delegate
-// classes and gives a C2500 error. (I saw this error on the try bots -
-// the workaround was not needed for my machine).
-typedef SpeechRecognitionBubbleController::Delegate
-    SpeechRecognitionBubbleControllerDelegate;
-
-}  // namespace speech
-
-#endif  // CHROME_BROWSER_SPEECH_SPEECH_RECOGNITION_BUBBLE_CONTROLLER_H_