Move tracking of ActiveScriptWrappables to V8PerIsolateData.

third_party/WebKit/Source/bindings/core/v8/V8PerIsolateData.cpp

Index: third_party/WebKit/Source/bindings/core/v8/V8PerIsolateData.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8PerIsolateData.cpp b/third_party/WebKit/Source/bindings/core/v8/V8PerIsolateData.cpp
index 39e86ef0fc4215c6d09df3b76e6ea7201c9bfefe..d8b07299c39035eedcf7f8ee5f87fc51ea33a437 100644
--- a/third_party/WebKit/Source/bindings/core/v8/V8PerIsolateData.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/V8PerIsolateData.cpp
@@ -190,6 +190,8 @@ void V8PerIsolateData::willBeDestroyed(v8::Isolate* isolate)
     // Clear any data that may have handles into the heap,
     // prior to calling ThreadState::detach().
     data->clearEndOfScopeTasks();
+
+    data->m_activeScriptWrappables.clear();
 }
 
 // destroy() clear things that should be cleared after ThreadState::detach()
@@ -341,4 +343,12 @@ ThreadDebugger* V8PerIsolateData::threadDebugger()
     return m_threadDebugger.get();
 }
 
+void V8PerIsolateData::addActiveScriptWrappable(ActiveScriptWrappable* wrappable)
+{
+    if (!m_activeScriptWrappables)
+        m_activeScriptWrappables = new ActiveScriptWrappableSet();
+
+    m_activeScriptWrappables->add(wrappable);
+}
+
 } // namespace blink