[Android WebView] Add auto-grant permissions to WebViewShell.

android_webview/tools/WebViewShell/AndroidManifest.xml

 <!--
  * Copyright 2015 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.
 -->
 
 <manifest
     xmlns:android="http://schemas.android.com/apk/res/android"
     package="org.chromium.webview_shell"
     android:versionCode="1"
     android:versionName="1.0" >
 
     <uses-sdk android:minSdkVersion="19"
               android:targetSdkVersion="22" />
 
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
+    <uses-permission android:name="android.permission.CAMERA"/>
+    <uses-permission android:name="android.permission.RECORD_AUDIO"/>
+    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>
 
     <application
         android:icon="@drawable/ic_launcher"
         android:label="@string/app_name"
         android:theme="@android:style/Theme.Light" >
         <activity
             android:name=".TelemetryActivity"
             android:label="@string/title_activity_telemetry"
             android:exported="true">
         </activity>
@@ skipping 20 matching lines @@
             <intent-filter>
                 <action android:name="android.intent.action.VIEW" />
                 <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.BROWSABLE" />
                 <data android:scheme="http" />
                 <data android:scheme="https" />
             </intent-filter>
         </activity>
     </application>
 </manifest>