[Andorid] Migrate to ClipDrawable progress bar.

chrome/android/shell/res/layout/chrome_shell_activity.xml

 <?xml version="1.0" encoding="utf-8"?>
 
 <!-- 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.
  -->
 
 <org.chromium.chrome.shell.TabManager android:id="@+id/tab_manager"
     xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:chrome="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical">
     <org.chromium.chrome.shell.ChromeShellToolbar android:id="@+id/toolbar"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:orientation="vertical">
         <LinearLayout
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
@@ skipping 34 matching lines @@
             <org.chromium.chrome.browser.widget.TintedImageButton
                 android:id="@+id/menu_button"
                 android:layout_width="38dp"
                 android:layout_height="38dp"
                 android:src="@drawable/btn_menu"
                 android:background="?attr/selectableItemBackground"
                 android:scaleType="center"/>
         </LinearLayout>
         <org.chromium.chrome.browser.widget.ToolbarProgressBar
             android:id="@+id/progress"
-            style="@android:style/Widget.Holo.Light.ProgressBar.Horizontal"
-            android:progressDrawable="@drawable/shell_progress_bar"
             android:layout_width="match_parent"
             android:layout_height="2dp"
-            android:progress="0" />
+            chrome:progressBarColor="@color/material_deep_teal_500"
+            chrome:backgroundColor="@android:color/transparent" />
     </org.chromium.chrome.shell.ChromeShellToolbar>
     <FrameLayout android:id="@+id/content_container"
         android:layout_width="match_parent"
         android:layout_height="0dp"
         android:layout_weight="1">
     </FrameLayout>
 
 </org.chromium.chrome.shell.TabManager>