Support datalist for date/time input types on Android

content/public/android/java/src/org/chromium/content/browser/input/TwoFieldDatePicker.java

Index: content/public/android/java/src/org/chromium/content/browser/input/TwoFieldDatePicker.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/input/TwoFieldDatePicker.java b/content/public/android/java/src/org/chromium/content/browser/input/TwoFieldDatePicker.java
index c6dfd616c388138575db5a16a207d8b5a69c79ef..c84ac38352f572e7b3accdcb179ff8a652886181 100644
--- a/content/public/android/java/src/org/chromium/content/browser/input/TwoFieldDatePicker.java
+++ b/content/public/android/java/src/org/chromium/content/browser/input/TwoFieldDatePicker.java
@@ -14,6 +14,7 @@ import android.widget.FrameLayout;
 import android.widget.NumberPicker;
 
 import java.util.Calendar;
+import java.util.TimeZone;
 
 import org.chromium.content.R;
 
@@ -85,11 +86,11 @@ public abstract class TwoFieldDatePicker extends FrameLayout {
             }
         };
 
-        mCurrentDate = Calendar.getInstance();
+        mCurrentDate = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
         if (minValue >= maxValue) {
-            mMinDate = Calendar.getInstance();
+            mMinDate = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
             mMinDate.set(0, 0, 1);
-            mMaxDate = Calendar.getInstance();
+            mMaxDate = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
             mMaxDate.set(9999, 0, 1);
         } else {
             mMinDate = createDateFromValue(minValue);
@@ -134,6 +135,11 @@ public abstract class TwoFieldDatePicker extends FrameLayout {
     protected abstract Calendar createDateFromValue(long value);
 
     /**
+     * Converts the date to a number as defined by the HTML spec.
+     */
+    protected abstract long valueFromDate(int year, int positionInYear);
+
+    /**
      * Updates the current date.
      *
      * @param year The year.
@@ -182,6 +188,13 @@ public abstract class TwoFieldDatePicker extends FrameLayout {
     }
 
     /**
+     * @return The selected value.
+     */
+    public long getValue() {
+        return valueFromDate(getYear(), getPositionInYear());
+    }
+
+    /**
      * @return The selected month or week.
      */
     public abstract int getPositionInYear();