Revert of Remove setVoiceSearchSupported part of EmbeddedSearch SearchBox API.

chrome/test/data/instant_extended_ntp.html

Index: chrome/test/data/instant_extended_ntp.html
diff --git a/chrome/test/data/instant_extended_ntp.html b/chrome/test/data/instant_extended_ntp.html
index 5dde81b7a5d365a67188a4bae4c71be414d7c610..da831f552850bb19576ace0104b2843676ddac4c 100644
--- a/chrome/test/data/instant_extended_ntp.html
+++ b/chrome/test/data/instant_extended_ntp.html
@@ -18,6 +18,7 @@
 var submitCount = 0;
 var onEscKeyPressedCalls = 0;
 var onFocusChangedCalls = 0;
+var onToggleVoiceSearchCalls = 0;
 var prefetchQuery = '';
 var isFocused = false;
 var onvisibilitycalls = 0;
@@ -114,6 +115,10 @@
   isFocused = apiHandle.isFocused;
 }
 
+function handleToggleVoiceSearch() {
+  onToggleVoiceSearchCalls++;
+}
+
 function handleSuggestionChange() {
   prefetchQuery = getApiHandle().suggestion.text;
 }
@@ -133,6 +138,7 @@
   apiHandle.onchange = handleOnChange;
   apiHandle.onkeypress = handleKeyPress;
   apiHandle.onfocuschange = handleFocusChange;
+  apiHandle.ontogglevoicesearch = handleToggleVoiceSearch;
   apiHandle.onsuggestionchange = handleSuggestionChange;
   newTabPageHandle.onmostvisitedchange = handleMostVisitedChange;
   newTabPageHandle.onthemechange = handleThemeChange;