Add support for |any| to Sky's code generator

sky/engine/tonic/dart_value.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 SKY_ENGINE_TONIC_DART_VALUE_H_
 #define SKY_ENGINE_TONIC_DART_VALUE_H_
 
 #include "base/logging.h"
 #include "dart/runtime/include/dart_api.h"
 #include "sky/engine/tonic/dart_persistent_value.h"
@@ skipping 12 matching lines @@
   static PassRefPtr<DartValue> Create(DartState* dart_state,
                                       Dart_Handle value) {
     return adoptRef(new DartValue(dart_state, value));
   }
 
   static PassRefPtr<DartValue> Create() { return adoptRef(new DartValue()); }
 
   ~DartValue();
 
   Dart_Handle dart_value() const { return dart_value_.value(); }
+  const base::WeakPtr<DartState>& dart_state() const {
+      return dart_value_.dart_state();
+  }
+
   bool is_empty() const { return !dart_value(); }
 
   bool is_null() const {
     DCHECK(!is_empty());
     return Dart_IsNull(dart_value());
   }
 
   bool is_function() const {
     DCHECK(!is_empty());
     return Dart_IsClosure(dart_value());
   }
 
   bool Equals(DartValue* other) const;
   void Clear();
 
  private:
   DartValue();
   DartValue(DartState* dart_state, Dart_Handle value);
 
   DartPersistentValue dart_value_;
 
   DISALLOW_COPY_AND_ASSIGN(DartValue);
 };
 
 }  // namespace blink
 
 #endif  // SKY_ENGINE_TONIC_DART_VALUE_H_