Support all drawable types in DropdownItem.

ui/android/java/src/org/chromium/ui/DropdownAdapter.java

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.ui;
 
 import android.content.Context;
 import android.graphics.Color;
 import android.graphics.Typeface;
-import android.support.graphics.drawable.VectorDrawableCompat;
+import android.support.v7.content.res.AppCompatResources;
 import android.text.TextUtils;
 import android.util.TypedValue;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.AbsListView.LayoutParams;
 import android.widget.ArrayAdapter;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.TextView;
@@ skipping 145 matching lines @@
 
         ImageView iconViewStart = (ImageView) layout.findViewById(R.id.start_dropdown_icon);
         ImageView iconViewEnd = (ImageView) layout.findViewById(R.id.end_dropdown_icon);
         if (item.isIconAtStart()) {
             iconViewEnd.setVisibility(View.GONE);
         } else {
             iconViewStart.setVisibility(View.GONE);
         }
 
         ImageView iconView = item.isIconAtStart() ? iconViewStart : iconViewEnd;
-        if (item.getVectorDrawableIconId() == DropdownItem.NO_ICON) {
+        if (item.getIconId() == DropdownItem.NO_ICON) {
             iconView.setVisibility(View.GONE);
         } else {
-            iconView.setImageDrawable(VectorDrawableCompat.create(mContext.getResources(),
-                    item.getVectorDrawableIconId(), mContext.getTheme()));
+            iconView.setImageDrawable(AppCompatResources.getDrawable(mContext, item.getIconId()));
             iconView.setVisibility(View.VISIBLE);
         }
 
         return layout;
     }
 
     @Override
     public boolean areAllItemsEnabled() {
         return mAreAllItemsEnabled;
     }
 
     @Override
     public boolean isEnabled(int position) {
         if (position < 0 || position >= getCount()) return false;
         DropdownItem item = getItem(position);
         return item.isEnabled() && !item.isGroupHeader();
     }
 }