Add Observatory to sky dart_controller

sky/engine/core/script/monitor.h

 // Copyright 2015 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.
 
-#ifndef MOJO_DART_EMBEDDER_MONITOR_H_
-#define MOJO_DART_EMBEDDER_MONITOR_H_
+#ifndef SKY_ENGINE_CORE_SCRIPT_MONITOR_H_
+#define SKY_ENGINE_CORE_SCRIPT_MONITOR_H_
 
 #include "base/synchronization/condition_variable.h"
 #include "base/synchronization/lock.h"
 
-namespace mojo {
-namespace dart {
+namespace blink {
 
 class Monitor {
  public:
   Monitor() {
     lock_ = new base::Lock();
     condition_variable_ = new base::ConditionVariable(lock_);
   }
 
   ~Monitor() {
     delete condition_variable_;
@@ skipping 40 matching lines @@
   void Notify() {
     monitor_->Notify();
   }
 
  private:
   Monitor* const monitor_;
 
   DISALLOW_COPY_AND_ASSIGN(MonitorLocker);
 };
 
-}  // namespace dart
-}  // namespace mojo
+}  // namespace blink
 
 
-#endif  // MOJO_DART_EMBEDDER_MONITOR_H_
+#endif  // SKY_ENGINE_CORE_SCRIPT_MONITOR_H_