Update Android Apps to use gradle

platform_tools/android/apps/visualbench/src/main/AndroidManifest.xml

 <?xml version="1.0" encoding="utf-8"?>
 <!-- BEGIN_INCLUDE(manifest) -->
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
           package="com.skia"
           android:versionCode="1"
           android:versionName="1.0">
 
     <!-- This is the platform API where NativeActivity was introduced. -->
     <uses-sdk android:minSdkVersion="9" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.ACCESS_ALL_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.WRITE_SETTINGS" />
     <application android:label="VisualBenchActivity">
         <activity android:name=".VisualBenchActivity"
                   android:label="VisualBenchActivity"
                   android:configChanges="orientation|keyboardHidden"
                   android:theme="@android:style/Theme.NoTitleBar.Fullscreen">
             <meta-data android:name="android.app.lib_name"
                        android:value="visualbench" />
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
     </application>
 
 </manifest> 
 <!-- END_INCLUDE(manifest) -->