media: Add Feature to control External Clear Key key system support

chrome/browser/media/encrypted_media_browsertest.cc

 // 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.
 
 #include <memory>
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/path_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/win/windows_version.h"
 #include "build/build_config.h"
 #include "chrome/browser/media/media_browsertest.h"
 #include "chrome/browser/media/test_license_server.h"
 #include "chrome/browser/media/wv_test_license_server_config.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/test_launcher_utils.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/test/browser_test_utils.h"
 #include "testing/gtest/include/gtest/gtest-spi.h"
 #if defined(OS_ANDROID)
 #include "base/android/build_info.h"
 #endif
 
 #if defined(ENABLE_PEPPER_CDMS)
 #include "chrome/browser/media/pepper_cdm_test_constants.h"
 #include "chrome/browser/media/pepper_cdm_test_helper.h"
+#include "media/base/media_switches.h"
 #endif
 
 #include "widevine_cdm_version.h"  //  In SHARED_INTERMEDIATE_DIR.
 
 // Available key systems.
 const char kClearKeyKeySystem[] = "org.w3.clearkey";
 const char kExternalClearKeyKeySystem[] = "org.chromium.externalclearkey";
 
 // Variants of External Clear Key key system to test different scenarios.
 // To add a new variant, make sure you also update:
@@ skipping 224 matching lines @@
       // Since the web and license servers listen on different ports, we need to
       // disable web-security to send license requests to the license server.
       // TODO(shadi): Add port forwarding to the test web server configuration.
       command_line->AppendSwitch(switches::kDisableWebSecurity);
 
 #if defined(ENABLE_PEPPER_CDMS)
     if (IsExternalClearKey(key_system)) {
       RegisterPepperCdm(command_line, kClearKeyCdmBaseDirectory,
                         kClearKeyCdmAdapterFileName, kClearKeyCdmDisplayName,
                         kClearKeyCdmPepperMimeType);
+      command_line->AppendSwitchASCII(switches::kEnableFeatures,
+                                      media::kExternalClearKeyForTesting.name);
     }
 #endif  // defined(ENABLE_PEPPER_CDMS)
   }
 };
 
 #if defined(ENABLE_PEPPER_CDMS)
 // Tests encrypted media playback using ExternalClearKey key system in
 // decrypt-and-decode mode.
 class ECKEncryptedMediaTest : public EncryptedMediaTestBase {
  public:
@@ skipping 361 matching lines @@
 
 IN_PROC_BROWSER_TEST_F(ECKEncryptedMediaTest, LoadLoadableSession) {
   TestPlaybackCase(kLoadableSession, kEnded);
 }
 
 IN_PROC_BROWSER_TEST_F(ECKEncryptedMediaTest, LoadUnknownSession) {
   TestPlaybackCase(kUnknownSession, kEmeSessionNotFound);
 }
 
 #endif  // defined(ENABLE_PEPPER_CDMS)