[Instant] Instant Extended tests for search term extraction.

chrome/test/data/instant_extended.html

Index: chrome/test/data/instant_extended.html
diff --git a/chrome/test/data/instant_extended.html b/chrome/test/data/instant_extended.html
index f6f59026b23c339cd253e465dff8a945d1f78678..0a620c7b46e8a062085a762e1f8298db78552211 100644
--- a/chrome/test/data/instant_extended.html
+++ b/chrome/test/data/instant_extended.html
@@ -5,6 +5,7 @@
 var apiHandle;
 var onnativesuggestioncalls = 0;
 var onsubmitcalls = 0;
+var suggestion;
 
 function getApiHandle() {
   if (window.navigator && window.navigator.searchBox)
@@ -16,15 +17,25 @@ function getApiHandle() {
 
 function handleNativeSuggestions() {
   onnativesuggestioncalls++;
-  apiHandle.show(2 /* QUERY_SUGGESTIONS */, 300);
+  // Showing the loader at 100% height.
+  apiHandle.show(2 /* QUERY_SUGGESTIONS */);
 }
 
 function handleSubmit() {
   onsubmitcalls++;
 }
 
+function handleOnChange() {
+  if (suggestion) {
+    apiHandle.setAutocompleteText(suggestion, 2);
+    // Ensure this is only called once for this suggestion.
+    suggestion = null;
+  }
+}
+
 function setUp() {
   apiHandle = getApiHandle();
+  apiHandle.onchange = handleOnChange;
   apiHandle.onnativesuggestions = handleNativeSuggestions;
   apiHandle.onsubmit = handleSubmit;
   if (apiHandle.value)