media: Add a web preference to enable encrypted media

content/renderer/render_view_impl.cc

 // Copyright (c) 2012 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.
 
 #include "content/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 #include <memory>
 
@@ skipping 808 matching lines @@
   settings->setMinimumLogicalFontSize(prefs.minimum_logical_font_size);
   settings->setDefaultTextEncodingName(
       WebString::fromASCII(prefs.default_encoding));
   settings->setJavaScriptEnabled(prefs.javascript_enabled);
   settings->setWebSecurityEnabled(prefs.web_security_enabled);
   settings->setJavaScriptCanOpenWindowsAutomatically(
       prefs.javascript_can_open_windows_automatically);
   settings->setLoadsImagesAutomatically(prefs.loads_images_automatically);
   settings->setImagesEnabled(prefs.images_enabled);
   settings->setPluginsEnabled(prefs.plugins_enabled);
+  settings->setEncryptedMediaEnabled(prefs.encrypted_media_enabled);
   settings->setDOMPasteAllowed(prefs.dom_paste_enabled);
   settings->setTextAreasAreResizable(prefs.text_areas_are_resizable);
   settings->setAllowScriptsToCloseWindows(prefs.allow_scripts_to_close_windows);
   settings->setDownloadableBinaryFontsEnabled(prefs.remote_fonts_enabled);
   settings->setJavaScriptCanAccessClipboard(
       prefs.javascript_can_access_clipboard);
   WebRuntimeFeatures::enableXSLT(prefs.xslt_enabled);
   settings->setXSSAuditorEnabled(prefs.xss_auditor_enabled);
   settings->setDNSPrefetchingEnabled(prefs.dns_prefetching_enabled);
   settings->setDataSaverEnabled(prefs.data_saver_enabled);
@@ skipping 1850 matching lines @@
                             INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   }
 
   std::unique_ptr<InputEventAck> ack(
       new InputEventAck(InputEventAckSource::MAIN_THREAD, input_event->type(),
                         INPUT_EVENT_ACK_STATE_NOT_CONSUMED));
   OnInputEventAck(std::move(ack));
 }
 
 }  // namespace content