Replace "enable-encrypted-media" flag with "disable-encrypted-media".

content/child/runtime_features.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 "content/child/runtime_features.h"
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "content/common/content_switches_internal.h"
 #include "content/public/common/content_switches.h"
@@ skipping 100 matching lines @@
   // WebAudio is enabled by default on ARM and X86, if the MediaCodec
   // API is available.
   WebRuntimeFeatures::enableWebAudio(
       !command_line.HasSwitch(switches::kDisableWebAudio) &&
       media::MediaCodecBridge::IsAvailable());
 #else
   if (command_line.HasSwitch(switches::kDisableWebAudio))
     WebRuntimeFeatures::enableWebAudio(false);
 #endif
 
-  if (command_line.HasSwitch(switches::kEnableEncryptedMedia))
-    WebRuntimeFeatures::enableEncryptedMedia(true);
+  if (command_line.HasSwitch(switches::kDisableEncryptedMedia))
+    WebRuntimeFeatures::enableEncryptedMedia(false);
 
   if (command_line.HasSwitch(switches::kDisablePrefixedEncryptedMedia))
     WebRuntimeFeatures::enablePrefixedEncryptedMedia(false);
 
   if (command_line.HasSwitch(switches::kEnableWebMIDI))
     WebRuntimeFeatures::enableWebMIDI(true);
 
   if (command_line.HasSwitch(switches::kDisableFileSystem))
     WebRuntimeFeatures::enableFileSystem(false);
 
@@ skipping 46 matching lines @@
   if (command_line.HasSwitch(switches::kReducedReferrerGranularity))
     WebRuntimeFeatures::enableReducedReferrerGranularity(true);
 
   if (command_line.HasSwitch(switches::kDisableV8IdleTasks))
     WebRuntimeFeatures::enableV8IdleTasks(false);
   else
     WebRuntimeFeatures::enableV8IdleTasks(true);
 }
 
 }  // namespace content