replace 'virtual ... OVERRIDE' with '... override'

base/json/json_value_converter.h

Index: base/json/json_value_converter.h
diff --git a/base/json/json_value_converter.h b/base/json/json_value_converter.h
index cf3c74f0c7599a2d074ae9c2408a74a85f277100..3de6e0d9568f2d728b3278586fd229b60916d297 100644
--- a/base/json/json_value_converter.h
+++ b/base/json/json_value_converter.h
@@ -122,8 +122,7 @@ class FieldConverter : public FieldConverterBase<StructType> {
         value_converter_(converter) {
   }
 
-  virtual bool ConvertField(
-      const base::Value& value, StructType* dst) const OVERRIDE {
+  bool ConvertField(const base::Value& value, StructType* dst) const override {
     return value_converter_->Convert(value, &(dst->*field_pointer_));
   }
 
@@ -141,7 +140,7 @@ class BasicValueConverter<int> : public ValueConverter<int> {
  public:
   BasicValueConverter() {}
 
-  virtual bool Convert(const base::Value& value, int* field) const OVERRIDE {
+  bool Convert(const base::Value& value, int* field) const override {
     return value.GetAsInteger(field);
   }
 
@@ -154,8 +153,7 @@ class BasicValueConverter<std::string> : public ValueConverter<std::string> {
  public:
   BasicValueConverter() {}
 
-  virtual bool Convert(
-      const base::Value& value, std::string* field) const OVERRIDE {
+  bool Convert(const base::Value& value, std::string* field) const override {
     return value.GetAsString(field);
   }
 
@@ -168,8 +166,7 @@ class BasicValueConverter<string16> : public ValueConverter<string16> {
  public:
   BasicValueConverter() {}
 
-  virtual bool Convert(
-      const base::Value& value, string16* field) const OVERRIDE {
+  bool Convert(const base::Value& value, string16* field) const override {
     return value.GetAsString(field);
   }
 
@@ -182,7 +179,7 @@ class BasicValueConverter<double> : public ValueConverter<double> {
  public:
   BasicValueConverter() {}
 
-  virtual bool Convert(const base::Value& value, double* field) const OVERRIDE {
+  bool Convert(const base::Value& value, double* field) const override {
     return value.GetAsDouble(field);
   }
 
@@ -195,7 +192,7 @@ class BasicValueConverter<bool> : public ValueConverter<bool> {
  public:
   BasicValueConverter() {}
 
-  virtual bool Convert(const base::Value& value, bool* field) const OVERRIDE {
+  bool Convert(const base::Value& value, bool* field) const override {
     return value.GetAsBoolean(field);
   }
 
@@ -211,8 +208,7 @@ class ValueFieldConverter : public ValueConverter<FieldType> {
   ValueFieldConverter(ConvertFunc convert_func)
       : convert_func_(convert_func) {}
 
-  virtual bool Convert(const base::Value& value,
-                       FieldType* field) const OVERRIDE {
+  bool Convert(const base::Value& value, FieldType* field) const override {
     return convert_func_(&value, field);
   }
 
@@ -230,8 +226,7 @@ class CustomFieldConverter : public ValueConverter<FieldType> {
   CustomFieldConverter(ConvertFunc convert_func)
       : convert_func_(convert_func) {}
 
-  virtual bool Convert(const base::Value& value,
-                       FieldType* field) const OVERRIDE {
+  bool Convert(const base::Value& value, FieldType* field) const override {
     std::string string_value;
     return value.GetAsString(&string_value) &&
         convert_func_(string_value, field);
@@ -248,8 +243,7 @@ class NestedValueConverter : public ValueConverter<NestedType> {
  public:
   NestedValueConverter() {}
 
-  virtual bool Convert(
-      const base::Value& value, NestedType* field) const OVERRIDE {
+  bool Convert(const base::Value& value, NestedType* field) const override {
     return converter_.Convert(value, field);
   }
 
@@ -263,8 +257,8 @@ class RepeatedValueConverter : public ValueConverter<ScopedVector<Element> > {
  public:
   RepeatedValueConverter() {}
 
-  virtual bool Convert(
-      const base::Value& value, ScopedVector<Element>* field) const OVERRIDE {
+  bool Convert(const base::Value& value,
+               ScopedVector<Element>* field) const override {
     const base::ListValue* list = NULL;
     if (!value.GetAsList(&list)) {
       // The field is not a list.
@@ -299,8 +293,8 @@ class RepeatedMessageConverter
  public:
   RepeatedMessageConverter() {}
 
-  virtual bool Convert(const base::Value& value,
-                       ScopedVector<NestedType>* field) const OVERRIDE {
+  bool Convert(const base::Value& value,
+               ScopedVector<NestedType>* field) const override {
     const base::ListValue* list = NULL;
     if (!value.GetAsList(&list))
       return false;
@@ -336,8 +330,8 @@ class RepeatedCustomValueConverter
   RepeatedCustomValueConverter(ConvertFunc convert_func)
       : convert_func_(convert_func) {}
 
-  virtual bool Convert(const base::Value& value,
-                       ScopedVector<NestedType>* field) const OVERRIDE {
+  bool Convert(const base::Value& value,
+               ScopedVector<NestedType>* field) const override {
     const base::ListValue* list = NULL;
     if (!value.GetAsList(&list))
       return false;