compositor worker: Use a WebThread for the compositor thread.

components/html_viewer/blink_platform_impl.cc

 // Copyright 2014 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 "components/html_viewer/blink_platform_impl.h"
 
 #include <cmath>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 237 matching lines @@
     const blink::WebString& host) const {
   net::IPAddressNumber address;
   if (!net::ParseURLHostnameToNumber(host.utf8(), &address))
     return false;
   return net::IsIPAddressReserved(address);
 }
 
 blink::WebThread* BlinkPlatformImpl::createThread(const char* name) {
   scheduler::WebThreadImplForWorkerScheduler* thread =
       new scheduler::WebThreadImplForWorkerScheduler(name);
+  thread->Init();
   thread->TaskRunner()->PostTask(
       FROM_HERE, base::Bind(&BlinkPlatformImpl::UpdateWebThreadTLS,
                             base::Unretained(this), thread));
   return thread;
 }
 
 blink::WebThread* BlinkPlatformImpl::currentThread() {
   if (main_thread_->isCurrentThread())
     return main_thread_.get();
   return static_cast<blink::WebThread*>(current_thread_slot_.Get());
@@ skipping 38 matching lines @@
 BlinkPlatformImpl::notificationManager() {
   return &web_notification_manager_;
 }
 
 void BlinkPlatformImpl::UpdateWebThreadTLS(blink::WebThread* thread) {
   DCHECK(!current_thread_slot_.Get());
   current_thread_slot_.Set(thread);
 }
 
 }  // namespace html_viewer