Remove WebKit::Platform dependencies from cc

webkit/compositor_bindings/ccthread_impl.cc

-// Copyright 2011 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 "config.h"
-#include "ccthread_impl.h"
-
-#include "cc/completion_event.h"
-#include "third_party/WebKit/Source/Platform/chromium/public/Platform.h"
-#include "third_party/WebKit/Source/Platform/chromium/public/WebThread.h"
-
-using cc::Thread;
-using cc::CompletionEvent;
-
-namespace WebKit {
-
-// Task that, when runs, places the current thread ID into the provided
-// pointer and signals a completion event.
-//
-// Does not provide a PassOwnPtr<GetThreadIDTask>::create method because
-// the resulting object is always handed into a WebThread, which does not understand
-// PassOwnPtrs.
-class GetThreadIDTask : public WebThread::Task {
-public:
-    GetThreadIDTask(base::PlatformThreadId* result, CompletionEvent* completion)
-         : m_completion(completion)
-         , m_result(result) { }
-
-    virtual ~GetThreadIDTask() { }
-
-    virtual void run()
-    {
-        *m_result = base::PlatformThread::CurrentId();
-        m_completion->signal();
-    }
-
-private:
-    CompletionEvent* m_completion;
-    base::PlatformThreadId* m_result;
-};
-
-// General adapter from a Thread::Task to a WebThread::Task.
-class ThreadTaskAdapter : public WebThread::Task {
-public:
-    explicit ThreadTaskAdapter(PassOwnPtr<Thread::Task> task) : m_task(task) { }
-
-    virtual ~ThreadTaskAdapter() { }
-
-    virtual void run()
-    {
-        m_task->performTask();
-    }
-
-private:
-    OwnPtr<Thread::Task> m_task;
-};
-
-scoped_ptr<Thread> CCThreadImpl::createForCurrentThread()
-{
-    return scoped_ptr<Thread>(new CCThreadImpl(Platform::current()->currentThread(), true)).Pass();
-}
-
-scoped_ptr<Thread> CCThreadImpl::createForDifferentThread(WebThread* thread)
-{
-    return scoped_ptr<Thread>(new CCThreadImpl(thread, false)).Pass();
-}
-
-CCThreadImpl::~CCThreadImpl()
-{
-}
-
-void CCThreadImpl::postTask(PassOwnPtr<Thread::Task> task)
-{
-    m_thread->postTask(new ThreadTaskAdapter(task));
-}
-
-void CCThreadImpl::postDelayedTask(PassOwnPtr<Thread::Task> task, long long delayMs)
-{
-    m_thread->postDelayedTask(new ThreadTaskAdapter(task), delayMs);
-}
-
-base::PlatformThreadId CCThreadImpl::threadID() const
-{
-    return m_threadID;
-}
-
-CCThreadImpl::CCThreadImpl(WebThread* thread, bool currentThread)
-    : m_thread(thread)
-{
-    if (currentThread) {
-        m_threadID = base::PlatformThread::CurrentId();
-        return;
-    }
-
-    // Get the threadId for the newly-created thread by running a task
-    // on that thread, blocking on the result.
-    CompletionEvent completion;
-    m_thread->postTask(new GetThreadIDTask(&m_threadID, &completion));
-    completion.wait();
-}
-
-} // namespace WebKit