Oilpan: move ImageData to the oilpan heap.

Source/bindings/v8/SerializedScriptValue.cpp

Index: Source/bindings/v8/SerializedScriptValue.cpp
diff --git a/Source/bindings/v8/SerializedScriptValue.cpp b/Source/bindings/v8/SerializedScriptValue.cpp
index aadb4c7bdb8ba33377a1547bd4bec72bae351588..d292d66c29773cf4d5418d30d5e607dce8c1ba3f 100644
--- a/Source/bindings/v8/SerializedScriptValue.cpp
+++ b/Source/bindings/v8/SerializedScriptValue.cpp
@@ -1935,7 +1935,7 @@ private:
             return false;
         if (m_position + pixelDataLength > m_length)
             return false;
-        RefPtr<ImageData> imageData = ImageData::create(IntSize(width, height));
+        RefPtrWillBeRawPtr<ImageData> imageData = ImageData::create(IntSize(width, height));
         Uint8ClampedArray* pixelArray = imageData->data();
         ASSERT(pixelArray);
         ASSERT(pixelArray->length() >= pixelDataLength);