Make limitations for input.ime.sendKeyEvents API.

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

Index: chrome/test/data/extensions/api_test/input_ime_nonchromeos/background.js
diff --git a/chrome/test/data/extensions/api_test/input_ime_nonchromeos/background.js b/chrome/test/data/extensions/api_test/input_ime_nonchromeos/background.js
index d007bc68105ba5945bff9f498e52549d44355007..7ee080c613513b1aab89b6057c778df05eca75ea 100644
--- a/chrome/test/data/extensions/api_test/input_ime_nonchromeos/background.js
+++ b/chrome/test/data/extensions/api_test/input_ime_nonchromeos/background.js
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+var failToSendKeyEvents = 'Could not send key events';
+
 chrome.test.runTests([
   function testActivate() {
     var focused = false;
@@ -55,6 +57,7 @@ chrome.test.runTests([
   },
 
   function testSendKeyEvents() {
+    // Sends a normal character key.
     chrome.input.ime.sendKeyEvents({
       'contextID': 1,
       'keyData': [{
@@ -68,6 +71,48 @@ chrome.test.runTests([
         'key': 'a',
         'code': 'KeyA'
      }]
+    }, function() {
+      // Normal character key should be allowed to send on any page.
+      chrome.test.assertNoLastError();
+    });
+
+    // Sends Ctrl+A that should fail on special pages.
+    chrome.input.ime.sendKeyEvents({
+      'contextID': 1,
+      'keyData': [{
+        'type': 'keydown',
+        'requestId': '2',
+        'key': 'a',
+        'code': 'KeyA',
+        'ctrlKey': true
+      }, {
+        'type': 'keyup',
+        'requestId': '3',
+        'key': 'a',
+        'code': 'KeyA',
+        'ctrlKey': true
+     }]
+    }, function() {
+      if (chrome.runtime.lastError) {
+        chrome.test.assertEq(failToSendKeyEvents,
+                             chrome.runtime.lastError.message);
+      }
+    });
+
+    // Sends Tab key that should fail on special pages.
+    chrome.input.ime.sendKeyEvents({
+      'contextID': 1,

[Devlin, 2016/06/28 20:56:44]

nit: no need for '' around property names.

[Azure Wei, 2016/06/29 02:53:46]

Done.

+      'keyData': [{
+        'type': 'keydown',
+        'requestId': '4',
+        'key': '\u0009',

[Devlin, 2016/06/28 20:56:44]

comment what this key is.

[Azure Wei, 2016/06/29 02:53:46]

Done.

+        'code': 'Tab'
+      }]
+    }, function() {
+      if (chrome.runtime.lastError) {
+        chrome.test.assertEq(failToSendKeyEvents,
+                             chrome.runtime.lastError.message);
+      }
     });
     chrome.test.succeed();
   }