Reverse the embedded-shared-worker flag to turn the feature on by default.

content/public/common/content_switches.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/public/common/content_switches.h"
 
 #include "base/command_line.h"
 
 namespace switches {
 
@@ skipping 126 matching lines @@
       "disable-navigator-content-utils";
 
 // Handles URL requests by NPAPI plugins through the renderer.
 const char kDisableDirectNPAPIRequests[]    = "disable-direct-npapi-requests";
 
 // Disable the per-domain blocking for 3D APIs after GPU reset.
 // This switch is intended only for tests.
 extern const char kDisableDomainBlockingFor3DAPIs[] =
     "disable-domain-blocking-for-3d-apis";
 
+// Disable running the SharedWorker inside the renderer process.
+const char kDisableEmbeddedSharedWorker[]    = "disable-embedded-shared-worker";
+
 // Disable experimental WebGL support.
 const char kDisableExperimentalWebGL[]      = "disable-webgl";
 
 // Disable the fast text autosizing implementation.
 const char kDisableFastTextAutosizing[]     = "disable-fast-text-autosizing";
 
 // Disable FileSystem API.
 const char kDisableFileSystem[]             = "disable-file-system";
 
 // Disables sending filters (SkImageFilter objects) between processes over IPC
@@ skipping 230 matching lines @@
 
 // Defer image decoding in WebKit until painting.
 const char kEnableDeferredImageDecoding[]   = "enable-deferred-image-decoding";
 
 // Enables delegated renderer.
 const char kEnableDelegatedRenderer[]       = "enable-delegated-renderer";
 
 // Enables restarting interrupted downloads.
 const char kEnableDownloadResumption[]      = "enable-download-resumption";
 
-// Enables running the SharedWorker inside the renderer process.
-const char kEnableEmbeddedSharedWorker[]    = "enable-embedded-shared-worker";
-
 // Enables support for Encrypted Media Extensions (e.g. MediaKeys).
 const char kEnableEncryptedMedia[] = "enable-encrypted-media";
 
 // Enable experimental canvas features, e.g. canvas 2D context attributes
 const char kEnableExperimentalCanvasFeatures[] =
     "enable-experimental-canvas-features";
 
 // Enables Web Platform features that are in development.
 const char kEnableExperimentalWebPlatformFeatures[] =
     "enable-experimental-web-platform-features";
@@ skipping 618 matching lines @@
 
 // Disables support for Core Animation plugins. This is triggered when
 // accelerated compositing is disabled. See http://crbug.com/122430 .
 const char kDisableCoreAnimationPlugins[] =
     "disable-core-animation-plugins";
 #endif
 
 // Don't dump stuff here, follow the same order as the header.
 
 }  // namespace switches