Fix a regression where the omnibox would re-enter extension keyword mode after

chrome/test/data/extensions/api_test/omnibox/test.html

 <script>
 chrome.omnibox.onInputChanged.addListener(
   function(text, suggest) {
     chrome.test.log("onInputChanged: " + text);
-    if (text != "suggestio")
-      return;
-
-    var desc = 'Description with style: <match>&lt;match&gt;</match>, ' +
-               '<dim>[dim]</dim>, <url>(url till end)</url>';
-    suggest([
-      {
-        content: text + "n1",
-        description: desc
-      },
-      {content: text + "n2", description: "description2"},
-      {content: text + "n3", description: "description3"},
-    ]);
+    if (text == "suggestio") {
+      // First test, complete "suggestio"
+      var desc = 'Description with style: <match>&lt;match&gt;</match>, ' +
+                 '<dim>[dim]</dim>, <url>(url till end)</url>';
+      suggest([
+        {content: text + "n1", description: desc},
+        {content: text + "n2", description: "description2"},
+        {content: text + "n3", description: "description3"},
+      ]);
+    } else {
+      // Other tests, just provide a simple suggestion.
+      suggest([{content: text + " 1", description: "description"}]);
+    }
   });
 
 chrome.omnibox.onInputEntered.addListener(
   function(text) {
     chrome.test.assertEq("command", text);
     chrome.test.notifyPass();
   });
 
 // Now we wait for the input events to fire.
 chrome.test.notifyPass();
 </script>