Prevent guest views from issuing a search for empty text.

chrome/test/data/extensions/platform_apps/web_view/shim/main.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 var util = {};
 var embedder = {};
 embedder.baseGuestURL = '';
 embedder.emptyGuestURL = '';
 embedder.windowOpenGuestURL = '';
 embedder.noReferrerGuestURL = '';
@@ skipping 2459 matching lines @@
       'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
       'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
       'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
       'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
       'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
       'Dog dog dog Dog dog dogcatDog dogDogdog.<br><br>' +
       '<a href="about:blank">Click here!</a>';
 
   var loadstopListener2 = function(e) {
     embedder.test.assertEq(webview.src, "about:blank");
-    embedder.test.succeed();
+    // Test find results when looking for nothing.
+    webview.find("", {}, function(results) {
+      embedder.test.assertEq(results.numberOfMatches, 0);
+      embedder.test.assertEq(results.activeMatchOrdinal, 0);
+      embedder.test.assertEq(results.selectionRect.left, 0);
+      embedder.test.assertEq(results.selectionRect.top, 0);
+      embedder.test.assertEq(results.selectionRect.width, 0);
+      embedder.test.assertEq(results.selectionRect.height, 0);
+
+      embedder.test.succeed();
+    });
   }
 
   var loadstopListener1 = function(e) {
     // Test find results.
     webview.find("dog", {}, function(results) {
-      callbackTest = true;
       embedder.test.assertEq(results.numberOfMatches, 100);
       embedder.test.assertTrue(results.selectionRect.width > 0);
       embedder.test.assertTrue(results.selectionRect.height > 0);
 
       // Test finding next active matches.
       webview.find("dog");
       webview.find("dog");
       webview.find("dog");
       webview.find("dog");
       webview.find("dog", {}, function(results) {
@@ skipping 512 matching lines @@
   'testRendererNavigationRedirectWhileUnattached':
        testRendererNavigationRedirectWhileUnattached
 };
 
 onload = function() {
   chrome.test.getConfig(function(config) {
     embedder.setUp_(config);
     chrome.test.sendMessage("Launched");
   });
 };