Remove WebThread

sky/engine/public/platform/WebThread.h

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 26 matching lines @@
 //
 // Deleting the thread blocks until all pending, non-delayed tasks have been
 // run.
 class BLINK_PLATFORM_EXPORT WebThread {
 public:
     class Task {
     public:
         virtual ~Task() { }
         virtual void run() = 0;
     };
-
-    class BLINK_PLATFORM_EXPORT TaskObserver {
-    public:
-        virtual ~TaskObserver() { }
-        virtual void willProcessTask() = 0;
-        virtual void didProcessTask() = 0;
-    };
-
-    // postTask() and postDelayedTask() take ownership of the passed Task
-    // object. It is safe to invoke postTask() and postDelayedTask() from any
-    // thread.
-    virtual void postTask(Task*) = 0;
-    virtual void postDelayedTask(Task*, long long delayMs) = 0;
-
-    virtual bool isCurrentThread() const = 0;
-    virtual PlatformThreadId threadId() const { return 0; }
-
-    virtual void addTaskObserver(TaskObserver*) { }
-    virtual void removeTaskObserver(TaskObserver*) { }
-
-    // enterRunLoop() processes tasks posted to this WebThread. This call does not return until some task calls exitRunLoop().
-    // WebThread does not support nesting, meaning that once the run loop is entered for a given WebThread it is not valid to
-    // call enterRunLoop() again.
-    virtual void enterRunLoop() = 0;
-
-    // exitRunLoop() runs tasks until there are no tasks available to run, then returns control to the caller of enterRunLoop().
-    // Must be called when the WebThread is running.
-    virtual void exitRunLoop() = 0;
-
-    virtual ~WebThread() { }
 };
 
 } // namespace blink
 
 #endif