Allow autoplay unmuted for WebAPK in the manifest scope

content/public/android/java/src/org/chromium/content/common/ContentSwitches.java

 // Copyright 2013 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.
 
 package org.chromium.content.common;
 
 /**
  * Contains all of the command line switches that are specific to the content/
  * portion of Chromium on Android.
  */
@@ skipping 31 matching lines @@
     // Native switch - chrome_switches::kDisablePopupBlocking
     public static final String DISABLE_POPUP_BLOCKING = "disable-popup-blocking";
 
     // Native switch kEnableCredentialManagerAPI
     public static final String ENABLE_CREDENTIAL_MANAGER_API = "enable-credential-manager-api";
 
     // Native switch kDisableGestureRequirementForMediaPlayback
     public static final String DISABLE_GESTURE_REQUIREMENT_FOR_MEDIA_PLAYBACK =
             "disable-gesture-requirement-for-media-playback";
 
+    // Native switch kMediaPlaybackGestureWhitelistScope
+    public static final String MEDIA_PLAYBACK_GESTURE_WHITELIST_SCOPE =
+            "media-playback-gesture-whitelist-scope";
+
     // Native switch kDisableGestureRequirementForPresentation
     public static final String DISABLE_GESTURE_REQUIREMENT_FOR_PRESENTATION =
             "disable-gesture-requirement-for-presentation";
 
     // Native switch kRendererProcessLimit
     public static final String RENDER_PROCESS_LIMIT = "renderer-process-limit";
 
     // Native switch kInProcessGPU
     public static final String IN_PROCESS_GPU = "in-process-gpu";
 
@@ skipping 22 matching lines @@
         // This format should be matched with the one defined in command_line.h.
         final String switchKeyPrefix = "--" + switchKey + "=";
         for (String command : commandLine) {
             if (command != null && command.startsWith(switchKeyPrefix)) {
                 return command.substring(switchKeyPrefix.length());
             }
         }
         return null;
     }
 }