Revert of Add WorkerThread based methods for start/stop of worker threads.

content/child/webthread_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.
 
 // An implementation of WebThread in terms of base::MessageLoop and
 // base::Thread
 
-#include <math.h>
-
 #include "content/child/webthread_impl.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/message_loop/message_loop.h"
 #include "base/pending_task.h"
 #include "base/threading/platform_thread.h"
 
 namespace content {
 
@@ skipping 63 matching lines @@
 void WebThreadImpl::exitRunLoop() {
   CHECK(isCurrentThread());
   CHECK(thread_->message_loop()->is_running());
   thread_->message_loop()->Quit();
 }
 
 bool WebThreadImpl::isCurrentThread() const {
   return thread_->thread_id() == base::PlatformThread::CurrentId();
 }
 
-void WebThreadImpl::setSharedTimerFiredFunction(
-    SharedTimerFunction timerFunction) {
-  shared_timer_function_ = timerFunction;
-}
-
-void WebThreadImpl::setSharedTimerFireInterval(double interval_seconds) {
-  // See BlinkPlatformImpl::setSharedTimerFireInterval for explanation of
-  // why ceil is used in the interval calculation.
-  int64 interval = static_cast<int64>(
-      ceil(interval_seconds * base::Time::kMillisecondsPerSecond)
-      * base::Time::kMicrosecondsPerMillisecond);
-
-  if (interval < 0)
-    interval = 0;
-
-  shared_timer_.Stop();
-  shared_timer_.Start(FROM_HERE, base::TimeDelta::FromMicroseconds(interval),
-                      this, &WebThreadImpl::OnTimeout);
-}
-
-void WebThreadImpl::stopSharedTimer() {
-  shared_timer_.Stop();
-}
-
 WebThreadImpl::~WebThreadImpl() {
   thread_->Stop();
 }
 
 WebThreadImplForMessageLoop::WebThreadImplForMessageLoop(
     base::MessageLoopProxy* message_loop)
     : message_loop_(message_loop) {}
 
 void WebThreadImplForMessageLoop::postTask(Task* task) {
   message_loop_->PostTask(
@@ skipping 21 matching lines @@
   base::MessageLoop::current()->Quit();
 }
 
 bool WebThreadImplForMessageLoop::isCurrentThread() const {
   return message_loop_->BelongsToCurrentThread();
 }
 
 WebThreadImplForMessageLoop::~WebThreadImplForMessageLoop() {}
 
 }  // namespace content