Adds SpeechInputManagerImpl to handle requests from render views and return recognition events.

chrome/browser/speech/speech_input_manager.h

Index: chrome/browser/speech/speech_input_manager.h
diff --git a/chrome/browser/speech/speech_input_manager.h b/chrome/browser/speech/speech_input_manager.h
index 39f0d8981d6387a030380cf6f43cea9219fa1c33..cac3294eac7e6b1cd0dc31b75a9d5b88eb1b5b69 100644
--- a/chrome/browser/speech/speech_input_manager.h
+++ b/chrome/browser/speech/speech_input_manager.h
@@ -18,7 +18,7 @@ namespace speech_input {
 class SpeechInputManager {
  public:
   // Implemented by the dispatcher host to relay events to the render views.
-  class Listener {
+  class Delegate {
   public:
     virtual void SetRecognitionResult(int render_view_id,
                                       const string16& value) = 0;
@@ -27,9 +27,9 @@ class SpeechInputManager {
   };
 
   // Factory method to create new instances.
-  static SpeechInputManager* Create(Listener* listener);
+  static SpeechInputManager* Create(Delegate* delegate);
   // Factory method definition useful for tests.
-  typedef SpeechInputManager* (FactoryMethod)(Listener*);
+  typedef SpeechInputManager* (FactoryMethod)(Delegate*);
 
   virtual ~SpeechInputManager() {}
 
@@ -39,6 +39,12 @@ class SpeechInputManager {
   virtual void StopRecording(int render_view_id) = 0;
 };
 
+// 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 SpeechInputManager::Delegate SpeechInputManagerDelegate;
+
 }  // namespace speech_input
 
 #endif  // CHROME_BROWSER_SPEECH_SPEECH_INPUT_MANAGER_H_