Adds IME switching private APIs.

chrome/test/data/extensions/api_test/input_method/background.js

 // Copyright (c) 2011 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 kNewInputMethod = "fr::fra";
+var kOldInputMethod = "_comp_ime_fgoepimhcoialccpbmpnnblemnepkkaoxkb:us::eng";
+var kNewInputMethod = "_comp_ime_fgoepimhcoialccpbmpnnblemnepkkaoxkb:fr::fra";
+var kInvalidInputMethod = "xx::xxx";
 
-function setAndGetTest() {
-  console.log('Changing input method to: ' + kNewInputMethod);
-  chrome.test.sendMessage('setInputMethod:' + kNewInputMethod,
-    function (response) {
-      chrome.test.assertEq('done', response);
-      console.log('Getting current input method.');
-      chrome.inputMethodPrivate.get(function (inputMethod) {
-        chrome.test.assertEq(kNewInputMethod, inputMethod);
-        chrome.test.succeed();
-      }
-    );
+// The tests needs to be executed in order.
+
+function setTest() {
+  console.log('setTest: Changing input method to: ' + kNewInputMethod);
+  chrome.inputMethodPrivate.setCurrentInputMethod(kNewInputMethod,
+    function() {
+      chrome.test.assertTrue(!chrome.runtime.lastError);
+      chrome.test.succeed();
+    });
+}
+
+function getTest() {
+  console.log('getTest: Getting current input method.');
+  chrome.inputMethodPrivate.getCurrentInputMethod(function(inputMethod) {
+    chrome.test.assertEq(kNewInputMethod, inputMethod);
+    chrome.test.succeed();
   });
 }
 
-function setAndObserveTest() {
-  console.log('Adding input method event listener.');
-  chrome.inputMethodPrivate.onChanged.addListener(
-    function(newInputMethod) {
-      chrome.test.assertEq(kNewInputMethod, newInputMethod);
+function observeTest() {
+  console.log('observeTest: Adding input method event listener.');
+  chrome.inputMethodPrivate.onChanged.addListener(function(subfix) {
+    chrome.test.assertEq('us::eng', subfix);
+    chrome.test.succeed();
+  });
+  console.log('observeTest: Changing input method to: ' + kOldInputMethod);
+  chrome.inputMethodPrivate.setCurrentInputMethod(kOldInputMethod);
+}
+
+
+function setInvalidTest() {
+  console.log(
+      'setInvalidTest: Changing input method to: ' + kInvalidInputMethod);
+  chrome.inputMethodPrivate.setCurrentInputMethod(kInvalidInputMethod,
+    function() {
+      chrome.test.assertTrue(!!chrome.runtime.lastError);
       chrome.test.succeed();
+    });
+}
+
+function getListTest() {
+  console.log('getListTest: Getting input method list.');
+  chrome.inputMethodPrivate.getInputMethods(function(inputMethods) {
+    chrome.test.assertEq(6, inputMethods.length);
+    var foundOldInputMethod = false;
+    var foundNewInputMethod = false;
+    for (var i = 0; i < inputMethods.length; ++i) {
+      if (inputMethods[i].id == kOldInputMethod)
+        foundOldInputMethod = true;
+      if (inputMethods[i].id == kNewInputMethod)
+        foundNewInputMethod = true;
     }
-  );
-  console.log('Changing input method to: ' + kNewInputMethod);
-  chrome.test.sendMessage('setInputMethod:' + kNewInputMethod,
-    function (response) {
-      chrome.test.assertEq('done', response);
-    }
-  );
+    chrome.test.assertTrue(foundOldInputMethod);
+    chrome.test.assertTrue(foundNewInputMethod);
+    chrome.test.succeed();
+  });
 }
 
 chrome.test.sendMessage('ready');
-chrome.test.runTests([setAndGetTest, setAndObserveTest]);
+chrome.test.runTests(
+    [setTest, getTest, observeTest, setInvalidTest, getListTest]);