Enabling autoplay and fullscreen for downloaded media

chrome/android/java/src/org/chromium/chrome/browser/customtabs/CustomTabActivity.java

 // 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.
 
 package org.chromium.chrome.browser.customtabs;
 
 import android.app.PendingIntent;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
@@ skipping 522 matching lines @@
         if (!mHasPrerendered) {
             customTabsConnection.resetPostMessageHandlerForSession(mSession, webContents);
         }
         tab.initialize(
                 webContents, getTabContentManager(),
                 new CustomTabDelegateFactory(
                         mIntentDataProvider.shouldEnableUrlBarHiding(),
                         mIntentDataProvider.isOpenedByChrome(),
                         getFullscreenManager().getBrowserVisibilityDelegate()),
                 false, false);
+
+        if (mIntentDataProvider.shouldEnableEmbeddedMediaExperience()) {
+            tab.enableEmbeddedMediaExperience(true);
+        }
+
         initializeMainTab(tab);
         return tab;
     }
 
     private void initializeMainTab(Tab tab) {
         tab.getTabRedirectHandler().updateIntent(getIntent());
         tab.getView().requestFocus();
         mTabObserver = new CustomTabObserver(
                 getApplication(), mSession, mIntentDataProvider.isOpenedByChrome());
 
@@ skipping 516 matching lines @@
         Intent intent = ChromeLauncherActivity.createCustomTabActivityIntent(
                 context, customTabIntent.intent, false);
         intent.setPackage(context.getPackageName());
         intent.putExtra(CustomTabIntentDataProvider.EXTRA_IS_INFO_PAGE, true);
         intent.putExtra(Browser.EXTRA_APPLICATION_ID, context.getPackageName());
         IntentHandler.addTrustedIntentExtras(intent);
 
         context.startActivity(intent);
     }
 }