Adds unit tests for swipe flick.

chrome/test/data/chromeos/virtual_keyboard/virtual_keyboard_test_base.js

Index: chrome/test/data/chromeos/virtual_keyboard/virtual_keyboard_test_base.js
diff --git a/chrome/test/data/chromeos/virtual_keyboard/virtual_keyboard_test_base.js b/chrome/test/data/chromeos/virtual_keyboard/virtual_keyboard_test_base.js
index 4e1e210f4e3b555d5a49da1974a1f37969b0e7be..93b4f17d501812d714b8f5194ea6d9b5d4fcd68a 100644
--- a/chrome/test/data/chromeos/virtual_keyboard/virtual_keyboard_test_base.js
+++ b/chrome/test/data/chromeos/virtual_keyboard/virtual_keyboard_test_base.js
@@ -19,6 +19,18 @@ function Debug(message) {
 }
 
 /**
+ * The enumeration of swipe directions.
+ * @const
+ * @enum {number}
+ */
+var SwipeDirection = {
+  RIGHT: 0x1,
+  LEFT: 0x2,
+  UP: 0x4,
+  DOWN: 0x8
+};
+
+/**
  * Layouts used in testing.
  * @enum {string}
  */
@@ -335,6 +347,8 @@ function setUp() {
 
   mockController.createFunctionMock(chrome.virtualKeyboardPrivate,
                                     'hideKeyboard');
+  mockController.createFunctionMock(chrome.virtualKeyboardPrivate,
+                                    'moveCursor');
 
   var validateSendCall = function(index, expected, observed) {
     // Only consider the first argument (VirtualKeyEvent) for the validation of
@@ -361,6 +375,12 @@ function setUp() {
     // matter for the purpose of validating the call.
   };
 
+  var validateMoveCursor = function(index, expected, observed) {
+    assertEquals(expected[0], observed[0], "Mismatched swipe directions.");
+    assertEquals(expected[1], observed[1], "Mismatched swipe flags.");
+  }
+  chrome.virtualKeyboardPrivate.moveCursor.validateCall = validateMoveCursor;
+
   // TODO(kevers): Mock additional extension API calls as required.
 }