[NTP::Downloads] Replace 36dp file type resources with vector drawables.

chrome/android/java/res/drawable/ic_music_note_white.xml

Index: chrome/android/java/res/drawable/ic_music_note_white.xml
diff --git a/chrome/android/java/res/drawable/ic_music_note_white.xml b/chrome/android/java/res/drawable/ic_music_note_white.xml
new file mode 100644
index 0000000000000000000000000000000000000000..7f4f82c6ad741d5c65c12036ac742f8833fa942a
--- /dev/null
+++ b/chrome/android/java/res/drawable/ic_music_note_white.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2017 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. -->
+<!-- TODO(https://crbug.com/602627) tools:targetApi added to mute the NewApi lint error. -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:tools="http://schemas.android.com/tools"
+        tools:targetApi="21"
+        android:width="48dp"
+        android:height="48dp"
+        android:viewportWidth="48.0"
+        android:viewportHeight="48.0">
+    <path
+        android:pathData="M24,6v21.11c-1.18,-0.69 -2.54,-1.11 -4,-1.11 -4.42,0 -8,3.58 -8,8s3.58,8 8,8 8,-3.58 8,-8V14h8V6H24z"
+        android:fillColor="#FFFFFF"/>
+</vector>