[Android] Implement empty view for download manager ui

chrome/android/java/res/layout/download_content.xml

Index: chrome/android/java/res/layout/download_content.xml
diff --git a/chrome/android/java/res/layout/download_content.xml b/chrome/android/java/res/layout/download_content.xml
new file mode 100644
index 0000000000000000000000000000000000000000..a7a0cf34f6cf18dd49a81f9e430208e11313271a
--- /dev/null
+++ b/chrome/android/java/res/layout/download_content.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2016 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. -->
+
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="#ffffff"
+    android:orientation="vertical" >
+
+    <org.chromium.chrome.browser.download.ui.DownloadManagerToolbar
+        android:id="@+id/action_bar"
+        android:layout_width="match_parent"
+        android:layout_height="?attr/actionBarSize"
+        android:background="@color/appbar_background"
+        android:layout_alignParentTop="true" >
+
+        <include layout="@layout/number_roll_view" />
+
+    </org.chromium.chrome.browser.download.ui.DownloadManagerToolbar>
+
+    <android.support.v7.widget.RecyclerView
+        android:id="@+id/recycler_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_alignParentBottom="true"
+        android:layout_below="@id/action_bar" />
+
+    <org.chromium.chrome.browser.widget.FadingShadowView
+        android:id="@+id/shadow"
+        android:layout_width="match_parent"
+        android:layout_height="10dp"
+        android:layout_below="@id/action_bar" />
+
+    <LinearLayout
+        android:id="@+id/empty_view"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerInParent="true"
+        android:orientation="vertical"
+        android:gravity="center"
+        android:visibility="gone" >
+
+        <ImageView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="3dp"
+            app:srcCompat="@drawable/downloads_big" />
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/download_manager_ui_empty"
+            android:textColor="#5B5B5B"
+            android:textSize="16sp" />
+    </LinearLayout>
+</RelativeLayout>