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

content/child/v8_value_converter_impl.h

 // Copyright (c) 2012 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 CONTENT_CHILD_V8_VALUE_CONVERTER_IMPL_H_
 #define CONTENT_CHILD_V8_VALUE_CONVERTER_IMPL_H_
 
 #include <map>
 
 #include "base/compiler_specific.h"
@@ skipping 12 matching lines @@
 
 class CONTENT_EXPORT V8ValueConverterImpl : public V8ValueConverter {
  public:
   V8ValueConverterImpl();
 
   // V8ValueConverter implementation.
   void SetDateAllowed(bool val) override;
   void SetRegExpAllowed(bool val) override;
   void SetFunctionAllowed(bool val) override;
   void SetStripNullFromObjects(bool val) override;
+  void SetConvertNegativeZeroToInt(bool val) override;
   void SetStrategy(Strategy* strategy) override;
   v8::Local<v8::Value> ToV8Value(
       const base::Value* value,
       v8::Local<v8::Context> context) const override;
   std::unique_ptr<base::Value> FromV8Value(
       v8::Local<v8::Value> value,
       v8::Local<v8::Context> context) const override;
 
  private:
   friend class ScopedAvoidIdentityHashForTesting;
@@ skipping 37 matching lines @@
   // If true, we will convert RegExp JavaScript objects to string.
   bool reg_exp_allowed_;
 
   // If true, we will convert Function JavaScript objects to dictionaries.
   bool function_allowed_;
 
   // If true, undefined and null values are ignored when converting v8 objects
   // into Values.
   bool strip_null_from_objects_;
 
+  // If true, convert -0 to an integer value (instead of a double).
+  bool convert_negative_zero_to_int_;
+
   bool avoid_identity_hash_for_testing_;
 
   // Strategy object that changes the converter's behavior.
   Strategy* strategy_;
 
   DISALLOW_COPY_AND_ASSIGN(V8ValueConverterImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_V8_VALUE_CONVERTER_IMPL_H_