Revert of Remove setVoiceSearchSupported part of EmbeddedSearch SearchBox API.

chrome/renderer/searchbox/searchbox.h

Index: chrome/renderer/searchbox/searchbox.h
diff --git a/chrome/renderer/searchbox/searchbox.h b/chrome/renderer/searchbox/searchbox.h
index d59e28797d3533c3d1bff242ff605f665dbf8386..a71cd1be94f6f4fb1d47fe3f5c68d91ac774ae92 100644
--- a/chrome/renderer/searchbox/searchbox.h
+++ b/chrome/renderer/searchbox/searchbox.h
@@ -121,6 +121,9 @@
   const ThemeBackgroundInfo& GetThemeBackgroundInfo();
   const EmbeddedSearchRequestParams& GetEmbeddedSearchRequestParams();
 
+  // Sends ChromeViewHostMsg_SetVoiceSearchSupported to the browser.
+  void SetVoiceSearchSupported(bool supported);
+
   // Sends ChromeViewHostMsg_StartCapturingKeyStrokes to the browser.
   void StartCapturingKeyStrokes();
 
@@ -164,6 +167,7 @@
   void OnSubmit(const base::string16& query,
                 const EmbeddedSearchRequestParams& params);
   void OnThemeChanged(const ThemeBackgroundInfo& theme_info);
+  void OnToggleVoiceSearch();
 
   // Returns the current zoom factor of the render view or 1 on failure.
   double GetZoom() const;