Add support for datalist to text input element on Android

ui/android/java/src/org/chromium/ui/autofill/AutofillListAdapter.java

Index: ui/android/java/src/org/chromium/ui/autofill/AutofillListAdapter.java
diff --git a/ui/android/java/src/org/chromium/ui/autofill/AutofillListAdapter.java b/ui/android/java/src/org/chromium/ui/autofill/AutofillListAdapter.java
index 62203dc70a802f4c7268cb3cbbd920f77e4f1956..f15b91b13db5ba6841e71c621252e276b98e4a99 100644
--- a/ui/android/java/src/org/chromium/ui/autofill/AutofillListAdapter.java
+++ b/ui/android/java/src/org/chromium/ui/autofill/AutofillListAdapter.java
@@ -6,26 +6,36 @@
 package org.chromium.ui.autofill;
 
 import android.content.Context;
+import android.content.res.Resources;
+import android.graphics.Color;
+import android.graphics.drawable.LayerDrawable;
 import android.text.TextUtils;
-
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.AbsListView.LayoutParams;
 import android.widget.ArrayAdapter;
 import android.widget.TextView;
 
 import org.chromium.ui.R;
 
+import org.chromium.base.ApiCompatibilityUtils;
+
 import java.util.ArrayList;
+import java.util.Set;
 
 /**
  * Autofill suggestion adapter for AutofillWindow.
  */
 public class AutofillListAdapter extends ArrayAdapter<AutofillSuggestion> {
     private Context mContext;
+    private Set<Integer> mSeparators;
 
-    AutofillListAdapter(Context context, ArrayList<AutofillSuggestion> objects) {
+    AutofillListAdapter(Context context,
+                        ArrayList<AutofillSuggestion> objects,
+                        Set<Integer> separators) {
         super(context, R.layout.autofill_text, objects);
+        mSeparators = separators;
         mContext = context;
     }
 
@@ -36,10 +46,30 @@ public class AutofillListAdapter extends ArrayAdapter<AutofillSuggestion> {
             LayoutInflater inflater =
                     (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
             layout = inflater.inflate(R.layout.autofill_text, null);
+            ApiCompatibilityUtils.setBackgroundForView(layout, new AutofillDividerDrawable());
         }
         TextView labelView = (TextView) layout.findViewById(R.id.autofill_label);
         labelView.setText(getItem(position).mLabel);
 
+        AutofillDividerDrawable divider = (AutofillDividerDrawable) layout.getBackground();
+        int height = mContext.getResources().getDimensionPixelSize(R.dimen.autofill_text_height);
+        if (position == 0) {
+            divider.setColor(Color.TRANSPARENT);
+        } else {
+            int dividerHeight = mContext.getResources().getDimensionPixelSize(
+                    R.dimen.autofill_text_divider_height);
+            height += dividerHeight;
+            divider.setHeight(dividerHeight);
+            if (mSeparators.contains(position)) {
+                divider.setColor(mContext.getResources().getColor(
+                                 R.color.autofill_dark_divider_color));
+            } else {
+                divider.setColor(mContext.getResources().getColor(
+                                 R.color.autofill_divider_color));
+            }
+        }
+        layout.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, height));
+
         TextView sublabelView = (TextView) layout.findViewById(R.id.autofill_sublabel);
         CharSequence sublabel = getItem(position).mSublabel;
         if (TextUtils.isEmpty(sublabel)) {