[Content] Allow V8ValueConverter to convert -0 to an integer

content/public/child/v8_value_converter.h

Index: content/public/child/v8_value_converter.h
diff --git a/content/public/child/v8_value_converter.h b/content/public/child/v8_value_converter.h
index 9afeb397bc56b2d5acbe337f5d16538d31bb0827..f53c7c651d465581874e25ae2c0cce0975dd1c25 100644
--- a/content/public/child/v8_value_converter.h
+++ b/content/public/child/v8_value_converter.h
@@ -100,6 +100,9 @@ class CONTENT_EXPORT V8ValueConverter {
   // converting arguments to extension APIs.
   virtual void SetStripNullFromObjects(bool val) = 0;
 
+  // If true, treats -0 as an integer. Otherwise, -0 is converted to a double.
+  virtual void SetConvertNegativeZeroToInt(bool val) = 0;
+
   // Extend default behavior of V8ValueConverter.
   virtual void SetStrategy(Strategy* strategy) = 0;