The shared worker repository shouldn't be available on Android.

content/renderer/renderer_webkitplatformsupport_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/renderer_webkitplatformsupport_impl.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/lazy_instance.h"
 #include "base/memory/shared_memory.h"
@@ skipping 599 matching lines @@
 }
 
 long long RendererWebKitPlatformSupportImpl::databaseGetSpaceAvailableForOrigin(
     const WebString& origin_identifier) {
   return DatabaseUtil::DatabaseGetSpaceAvailable(origin_identifier,
                                                  sync_message_filter_.get());
 }
 
 WebKit::WebSharedWorkerRepository*
 RendererWebKitPlatformSupportImpl::sharedWorkerRepository() {
+#if !defined(OS_ANDROID)
   if (!CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisableSharedWorkers)) {
     return shared_worker_repository_.get();
   } else {
     return NULL;
   }
+#else
+  // Shared workers are unsupported on Android. Returning NULL will prevent the
+  // window.SharedWorker constructor from being exposed. http://crbug.com/154571
+  return NULL;
+#endif
 }
 
 bool RendererWebKitPlatformSupportImpl::canAccelerate2dCanvas() {
   RenderThreadImpl* thread = RenderThreadImpl::current();
   GpuChannelHost* host = thread->EstablishGpuChannelSync(
       CAUSE_FOR_GPU_LAUNCH_CANVAS_2D);
   if (!host)
     return false;
 
   const gpu::GPUInfo& gpu_info = host->gpu_info();
@@ skipping 432 matching lines @@
     return;
   QuotaDispatcher::ThreadSpecificInstance(
       thread_safe_sender_.get(),
       quota_message_filter_.get())->QueryStorageUsageAndQuota(
           storage_partition,
           static_cast<quota::StorageType>(type),
           QuotaDispatcher::CreateWebStorageQuotaCallbacksWrapper(callbacks));
 }
 
 }  // namespace content