Introduces the speech recognition UI to app_list.

ui/app_list/cocoa/apps_search_box_controller.mm

Index: ui/app_list/cocoa/apps_search_box_controller.mm
diff --git a/ui/app_list/cocoa/apps_search_box_controller.mm b/ui/app_list/cocoa/apps_search_box_controller.mm
index 1ef31e308aa167873f0e11c364c610730a05eb52..b937c4c4c184b1d4946984fd4da3a211a3bb0ccf 100644
--- a/ui/app_list/cocoa/apps_search_box_controller.mm
+++ b/ui/app_list/cocoa/apps_search_box_controller.mm
@@ -54,7 +54,6 @@ class SearchBoxModelObserverBridge : public SearchBoxModelObserver {
 
   virtual void IconChanged() OVERRIDE;
   virtual void SpeechRecognitionButtonPropChanged() OVERRIDE;
-  virtual void SetSpeechRecognitionButtonState(bool toggled) OVERRIDE;
   virtual void HintTextChanged() OVERRIDE;
   virtual void SelectionModelChanged() OVERRIDE;
   virtual void TextChanged() OVERRIDE;
@@ -103,12 +102,6 @@ void SearchBoxModelObserverBridge::SpeechRecognitionButtonPropChanged() {
   NOTIMPLEMENTED();
 }
 
-void SearchBoxModelObserverBridge::SetSpeechRecognitionButtonState(
-    bool toggled) {
-  // TODO(mukai): implement.
-  NOTIMPLEMENTED();
-}
-
 void SearchBoxModelObserverBridge::HintTextChanged() {
   [[[parent_ searchTextField] cell] setPlaceholderString:
       base::SysUTF16ToNSString(GetModel()->hint_text())];