Introducing the basic functionality to the speech input experimental API.

chrome/browser/extensions/extension_speech_input_api.h

Index: chrome/browser/extensions/extension_speech_input_api.h
diff --git a/chrome/browser/extensions/extension_speech_input_api.h b/chrome/browser/extensions/extension_speech_input_api.h
index 46b8db3ffcbdf03717385c4d82ec57794ce07221..49482e923a2001b2823c7af4aee907570238a236 100644
--- a/chrome/browser/extensions/extension_speech_input_api.h
+++ b/chrome/browser/extensions/extension_speech_input_api.h
@@ -16,7 +16,9 @@ class ExtensionSpeechInputManager;
 class SpeechInputAsyncFunction : public AsyncExtensionFunction,
                                  public NotificationObserver {
  protected:
-  SpeechInputAsyncFunction();
+  SpeechInputAsyncFunction(int start_state, int transition_state,
+                           int end_state, int transition_notification);
+  virtual ~SpeechInputAsyncFunction();
 
   virtual void Run() OVERRIDE;
   virtual bool RunImpl() = 0;
@@ -27,11 +29,23 @@ class SpeechInputAsyncFunction : public AsyncExtensionFunction,
                        const NotificationSource& source,
                        const NotificationDetails& details) OVERRIDE;
 
+  // To be defined on construction by derived classes.
+  int start_state_;
+  int transition_state_;
+  int end_state_;
+  int transition_notification_;
+
   NotificationRegistrar registrar_;
+  bool expecting_transition_;
+  bool failed_;
 };
 
 // Implements experimental.speechInput.start.
 class StartSpeechInputFunction : public SpeechInputAsyncFunction {
+ public:
+  StartSpeechInputFunction();
+  virtual ~StartSpeechInputFunction() {}
+
  protected:
   virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.speechInput.start");
@@ -39,13 +53,17 @@ class StartSpeechInputFunction : public SpeechInputAsyncFunction {
 
 // Implements experimental.speechInput.stop.
 class StopSpeechInputFunction : public SpeechInputAsyncFunction {
+ public:
+  StopSpeechInputFunction();
+  virtual ~StopSpeechInputFunction() {}
+
  protected:
   virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.speechInput.stop");
 };
 
 // Implements experimental.speechInput.isRecording.
-class IsRecordingSpeechInputFunction : public SyncIOThreadExtensionFunction {
+class IsRecordingSpeechInputFunction : public SyncExtensionFunction {
  protected:
   virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.speechInput.isRecording");