Added Dartium changes onto 45.0.2454.104

Source/bindings/core/dart/DartHandleProxy.h

Index: Source/bindings/core/dart/DartHandleProxy.h
diff --git a/Source/bindings/core/dart/DartHandleProxy.h b/Source/bindings/core/dart/DartHandleProxy.h
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+/*
+ * Copyright (C) 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
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * 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.
+ */
+
+#ifndef DartHandleProxy_h
+#define DartHandleProxy_h
+
+#include "bindings/core/dart/DartUtilities.h"
+#include "bindings/core/v8/ScriptSourceCode.h"
+
+#include <dart_api.h>
+#include <dart_mirrors_api.h>
+#include <dart_tools_api.h>
+#include <v8.h>
+
+namespace blink {
+
+class Node;
+class DartPersistentValue;
+
+class DartHandleProxy {
+public:
+    static v8::Handle<v8::Value> create(Dart_Handle value);
+    static v8::Handle<v8::Value> createTypeProxy(Dart_Handle value, bool showStatics);
+    static v8::Handle<v8::Value> createLibraryProxy(Dart_Handle value, intptr_t libraryId, Dart_Handle prefix, bool asGlobal);
+    static v8::Handle<v8::Value> createLocalScopeProxy(Dart_Handle localVariables);
+    static v8::Handle<v8::Value> evaluate(Dart_Handle target, Dart_Handle expression, Dart_Handle localVariables);
+
+    static bool isDartProxy(v8::Handle<v8::Value>);
+    static const char* getJavaScriptType(v8::Handle<v8::Value>);
+    static Node* toNativeNode(v8::Handle<v8::Value>);
+    static Dart_Handle unwrapValue(v8::Handle<v8::Value>);
+
+    static DartPersistentValue* readPointerFromProxy(v8::Handle<v8::Value>);
+    static void writePointerToProxy(v8::Local<v8::Object> proxy, Dart_Handle);
+
+    struct CallbackData;
+};
+
+/**
+ * Helper class to manage all scopes that must be entered to safely invoke Dart
+ * code.
+ */
+class DartScopes {
+private:
+    DartPersistentValue* scriptValue;
+    DartIsolateScope scope;
+    DartApiScope apiScope;
+    Dart_ExceptionPauseInfo previousPauseInfo;
+    bool disableBreak;
+
+public:
+    Dart_PersistentHandle handle;
+
+    DartScopes(v8::Local<v8::Object> v8Handle, bool disableBreak = false);
+    ~DartScopes();
+};
+
+}
+
+#endif // DartHandleProxy_h