Adds shift and capslock tests to IME Keyboard tests.

chrome/test/data/chromeos/virtual_keyboard/inputview/test_base.js

Index: chrome/test/data/chromeos/virtual_keyboard/inputview/test_base.js
diff --git a/chrome/test/data/chromeos/virtual_keyboard/inputview/test_base.js b/chrome/test/data/chromeos/virtual_keyboard/inputview/test_base.js
index b7e13ddbff94adb88aee7e68b285df374994b70e..2e5df1d0bc8fb94b1b10c052593ba1f784eb8909 100644
--- a/chrome/test/data/chromeos/virtual_keyboard/inputview/test_base.js
+++ b/chrome/test/data/chromeos/virtual_keyboard/inputview/test_base.js
@@ -10,6 +10,7 @@ var setComposition;
 
 var DEFAULT_CONTEXT_ID = 0;
 var LONGPRESS_DELAY = 1100;
+var CAPSLOCK_ID = "OsLeft";
 
 /**
  * Key alignments.
@@ -82,7 +83,21 @@ function generateMouseEvent(target, type) {
 }
 
 /**
- * Mocks a character type using the mouse.
+ * Mocks a key type using the mouse.
+ * @param {Object} key The key to click on.
+ */
+function mockMouseTypeOnKey(key) {
+  generateMouseEvent(key, 'mouseover', true, true);
+  generateMouseEvent(key, 'mousedown', true, true);
+  generateMouseEvent(key, 'mouseup', true, true);
+  generateMouseEvent(key, 'click', true, true);
+  generateMouseEvent(key, 'mouseover', true, true);
+  generateMouseEvent(key, 'mouseout', true, true);
+}
+
+/**
+ * Mocks a character type using the mouse. Expects the character will be
+ * committed.
  * @param {String} char The character to type.
  */
 function mockMouseType(char) {
@@ -92,12 +107,7 @@ function mockMouseType(char) {
     text: char,
   });
   var key = getKey(char);
-  generateMouseEvent(key, 'mouseover', true, true);
-  generateMouseEvent(key, 'mousedown', true, true);
-  generateMouseEvent(key, 'mouseup', true, true);
-  generateMouseEvent(key, 'click', true, true);
-  generateMouseEvent(key, 'mouseover', true, true);
-  generateMouseEvent(key, 'mouseout', true, true);
+  mockMouseTypeOnKey(key);
 }
 
 /**
@@ -191,3 +201,26 @@ function mockLongpress(char, altKeys, selection) {
   container = getActiveAltContainer();
   assertFalse(!!container, "Alt key container was not hidden.");
 }
+
+/**
+ * Retrieves the shift key from the current keyset.
+ * @param {Alignment} align The alignment of the shift key.
+ * @return {Object} The key.
+ */
+function getShiftKey(align) {
+  var id;
+  switch(align) {
+    case Alignment.LEFT:
+      id = 'ShiftLeft';
+      break;
+    case Alignment.RIGHT:
+      id = 'ShiftRight';
+      break;
+    default:
+      break;
+  }
+  assertTrue(!!id, "Invalid shift alignment option: " + align);
+  var shift = document.querySelector('#' + id);
+  assertTrue(!!shift, "Cannot find shift key with alignment: " + align);
+  return shift;
+}