Merge 129106 - REGRESSION(r127727): Can't navigate between months with arrow keys in calendar picker

Source/WebCore/Resources/pagepopups/calendarPicker.js

Index: Source/WebCore/Resources/pagepopups/calendarPicker.js
===================================================================
--- Source/WebCore/Resources/pagepopups/calendarPicker.js	(revision 129321)
+++ Source/WebCore/Resources/pagepopups/calendarPicker.js	(working copy)
@@ -985,10 +985,10 @@
  * @return {!boolean}
  */
 DaysTable.prototype._maybeSetPreviousMonth = function() {
-    var year = global.yearMonthController.year();
-    var month = global.yearMonthController.month();
+    var year = this.picker.yearMonthController.year();
+    var month = this.picker.yearMonthController.month();
     var thisMonthStartTime = createUTCDate(year, month, 1).getTime();
-    if (this.minimumDate.getTime() >= thisMonthStartTime)
+    if (this.picker.minimumDate.getTime() >= thisMonthStartTime)
         return false;
     if (month == 0) {
         year--;
@@ -1003,8 +1003,8 @@
  * @return {!boolean}
  */
 DaysTable.prototype._maybeSetNextMonth = function() {
-    var year = global.yearMonthController.year();
-    var month = global.yearMonthController.month();
+    var year = this.picker.yearMonthController.year();
+    var month = this.picker.yearMonthController.month();
     if (month == 11) {
         year++;
         month = 0;