Refactoring WorkletThreadBackingHolder with template pattern

third_party/WebKit/Source/core/workers/WorkletBackingThreadHolder.cpp

Index: third_party/WebKit/Source/core/workers/WorkletBackingThreadHolder.cpp
diff --git a/third_party/WebKit/Source/core/workers/WorkletBackingThreadHolder.cpp b/third_party/WebKit/Source/core/workers/WorkletBackingThreadHolder.cpp
deleted file mode 100644
index 95acbfb5196940f49a73e4d3d2dd463f94ce9613..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/core/workers/WorkletBackingThreadHolder.cpp
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright 2016 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 "core/workers/WorkletBackingThreadHolder.h"
-
-#include "core/workers/WorkerBackingThread.h"
-#include "platform/WaitableEvent.h"
-#include "platform/WebThreadSupportingGC.h"
-
-namespace blink {
-
-WorkletBackingThreadHolder::WorkletBackingThreadHolder(
-    std::unique_ptr<WorkerBackingThread> backingThread)
-    : m_thread(std::move(backingThread)), m_initialized(false) {
-  DCHECK(isMainThread());
-  m_thread->backingThread().postTask(
-      BLINK_FROM_HERE,
-      crossThreadBind(&WorkletBackingThreadHolder::initializeOnThread,
-                      crossThreadUnretained(this)));
-}
-
-void WorkletBackingThreadHolder::shutdownAndWait() {
-  DCHECK(isMainThread());
-  WaitableEvent waitableEvent;
-  m_thread->backingThread().postTask(
-      BLINK_FROM_HERE,
-      crossThreadBind(&WorkletBackingThreadHolder::shutdownOnThread,
-                      crossThreadUnretained(this),
-                      crossThreadUnretained(&waitableEvent)));
-  waitableEvent.wait();
-}
-
-void WorkletBackingThreadHolder::shutdownOnThread(
-    WaitableEvent* waitableEvent) {
-  m_thread->shutdown();
-  waitableEvent->signal();
-}
-
-}  // namespace blink