Import Dart bindings as of Blink r188698. This merely copies the files over and does not attach any…

sky/engine/bindings-dart/core/dart/DartIsolateDestructionObserver.cpp

Index: sky/engine/bindings-dart/core/dart/DartIsolateDestructionObserver.cpp
diff --git a/sky/engine/platform/PlatformThreadData.cpp b/sky/engine/bindings-dart/core/dart/DartIsolateDestructionObserver.cpp
similarity index 69%
copy from sky/engine/platform/PlatformThreadData.cpp
copy to sky/engine/bindings-dart/core/dart/DartIsolateDestructionObserver.cpp
index 4c73f145892fd21c0664afcde1afd09f65ee25f0..8f8833b52bd0f8da6dc4d8269667a13db4f91335 100644
--- a/sky/engine/platform/PlatformThreadData.cpp
+++ b/sky/engine/bindings-dart/core/dart/DartIsolateDestructionObserver.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 Google Inc. All rights reserved.
+ * Copyright (C) 2006-2012 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
@@ -28,36 +28,32 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include "sky/engine/config.h"
-#include "sky/engine/platform/PlatformThreadData.h"
+#include "config.h"
+#include "bindings/core/dart/DartIsolateDestructionObserver.h"
 
-#include "sky/engine/platform/ThreadTimers.h"
-#include "sky/engine/wtf/PassOwnPtr.h"
-#include "sky/engine/wtf/ThreadSpecific.h"
+#include "bindings/core/dart/DartDOMData.h"
+#include "bindings/core/dart/DartUtilities.h"
 
 namespace blink {
 
-static ThreadSpecific<PlatformThreadData>* s_data;
-
-PlatformThreadData::PlatformThreadData()
-    : m_threadTimers(adoptPtr(new ThreadTimers))
+DartIsolateDestructionObserver::DartIsolateDestructionObserver()
 {
+    m_isolate = Dart_CurrentIsolate();
+    DartDOMData::current()->isolateDestructionObservers()->add(this);
 }
 
-PlatformThreadData::~PlatformThreadData()
+DartIsolateDestructionObserver::~DartIsolateDestructionObserver()
 {
-}
+    if (!m_isolate)
+        return;
 
-void PlatformThreadData::destroy()
-{
-    m_threadTimers.clear();
+    DartIsolateScope scope(m_isolate);
+    DartDOMData::current()->isolateDestructionObservers()->remove(this);
 }
 
-PlatformThreadData& PlatformThreadData::current()
+void DartIsolateDestructionObserver::isolateDestroyed()
 {
-    if (!s_data)
-        s_data = new ThreadSpecific<PlatformThreadData>;
-    return **s_data;
+    m_isolate = 0;
 }
 
-} // namespace blink
+}