Add more trace events to Sky

sky/engine/core/dom/Microtask.cpp

 /*
  * Copyright (C) 2013 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 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "sky/engine/config.h"
 #include "sky/engine/core/dom/Microtask.h"
 
 #include "base/bind.h"
-#include "sky/engine/platform/TraceEvent.h"
+#include "base/trace_event/trace_event.h"
 #include "sky/engine/public/platform/WebThread.h"
 #include "sky/engine/wtf/OwnPtr.h"
 #include "sky/engine/wtf/Vector.h"
 
 namespace blink {
 
 namespace {
 
 class Task : public WebThread::Task {
 public:
@@ skipping 18 matching lines @@
 static MicrotaskQueue& microtaskQueue()
 {
     DEFINE_STATIC_LOCAL(OwnPtr<MicrotaskQueue>, queue, (adoptPtr(new MicrotaskQueue())));
     return *queue;
 }
 
 void Microtask::performCheckpoint()
 {
     MicrotaskQueue& queue = microtaskQueue();
     while(!queue.isEmpty()) {
+        TRACE_EVENT0("sky", "Microtask::performCheckpoint");
+
         MicrotaskQueue local;
         swap(queue, local);
         for (const auto& task : local)
             task->run();
     }
 }
 
-// static void microtaskFunctionCallback(void* data)
-// {
-//     OwnPtr<WebThread::Task> task = adoptPtr(static_cast<WebThread::Task*>(data));
-//     task->run();
-// }
-
 void Microtask::enqueueMicrotask(PassOwnPtr<WebThread::Task> callback)
 {
     microtaskQueue().append(callback);
 }
 
 void Microtask::enqueueMicrotask(const base::Closure& callback)
 {
     enqueueMicrotask(adoptPtr(new Task(callback)));
 }
 
 } // namespace blink