[dartium] Dart half of ScriptValue refactoring.

Source/bindings/dart/DartScriptValue.cpp

Index: Source/bindings/dart/DartScriptValue.cpp
diff --git a/Source/bindings/dart/DartScriptValue.cpp b/Source/bindings/dart/DartScriptValue.cpp
index 8ca68007886ca34e69c277861bfcb166b8bae37d..bca059d7345416065a5523be437197f9a0587126 100644
--- a/Source/bindings/dart/DartScriptValue.cpp
+++ b/Source/bindings/dart/DartScriptValue.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012 Google Inc. All rights reserved.
+ * Copyright (C) 2014 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
@@ -27,26 +27,54 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
+
 #include "config.h"
 #include "bindings/dart/DartScriptValue.h"
 
-#include "bindings/dart/DartDOMData.h"
 #include "bindings/dart/DartUtilities.h"
+#include "bindings/dart/V8Converter.h"
+#include "platform/JSONValues.h"
 
 namespace WebCore {
 
-DartScriptValue::DartScriptValue(Dart_Handle value)
+DartScriptValue::~DartScriptValue()
 {
-    m_value = Dart_NewPersistentHandle(value);
 }
 
-DartScriptValue::~DartScriptValue()
+// FIXMEDART: Renamed toString in M36.
+bool DartScriptValue::getString(String& result) const
 {
-    if (!isIsolateAlive())
-        return;
+    if (hasNoValue())
+        return false;
+
+    Dart_Handle exception = 0;
+    DartStringAdapter string = DartUtilities::dartToString(m_value, exception);
+    if (exception)
+        return false;
+    result = string;
+    return true;
+}
 
-    DartIsolateScope scope(isolate());
-    Dart_DeletePersistentHandle(m_value);
+// FIXMEDART: Removed in M36.
+String DartScriptValue::toString() const
+{
+    String result;
+    if (!getString(result))
+        return String();
+    return result;
 }
 
+// FIXMEDART: Implement without conversion to v8.
+PassRefPtr<JSONValue> DartScriptValue::toJSONValue(ScriptState* scriptState) const
+{
+    Dart_Handle exception = 0;
+    v8::Handle<v8::Value> v8Value = V8Converter::toV8(m_value, exception);
+    if (exception) {
+        ASSERT_NOT_REACHED();
+        return nullptr;
+    }
+    ScriptValue v8ScriptValue(v8Value, scriptState->isolate());
+    return v8ScriptValue.toJSONValue(scriptState);
 }
+
+} // namespace WebCore