Make base::Value::TYPE a scoped enum.

components/policy/core/common/schema_internal.h

Index: components/policy/core/common/schema_internal.h
diff --git a/components/policy/core/common/schema_internal.h b/components/policy/core/common/schema_internal.h
index 586b3c3947cbe784d95ce5b770c6adc8d1df5dce..503bbc5ad7c4b2a97e3bf1a0060a6c7bd98b82af 100644
--- a/components/policy/core/common/schema_internal.h
+++ b/components/policy/core/common/schema_internal.h
@@ -20,15 +20,15 @@ struct POLICY_EXPORT SchemaNode {
   // The policy type.
   base::Value::Type type;
 
-  // If |type| is TYPE_DICTIONARY then |extra| is an offset into
+  // If |type| is Type::DICTIONARY then |extra| is an offset into
   // SchemaData::properties_nodes that indexes the PropertiesNode describing
   // the entries of this dictionary.
   //
-  // If |type| is TYPE_LIST then |extra| is an offset into
+  // If |type| is Type::LIST then |extra| is an offset into
   // SchemaData::schema_nodes that indexes the SchemaNode describing the items
   // of this list.
   //
-  // If |type| is TYPE_INTEGER or TYPE_STRING, and contains corresponding
+  // If |type| is Type::INTEGER or Type::STRING, and contains corresponding
   // restriction (enumeration of possible values, or range for integer), then
   // |extra| is an offset into SchemaData::restriction_nodes that indexes the
   // RestrictionNode describing the restriction on the value.
@@ -78,7 +78,7 @@ struct POLICY_EXPORT PropertiesNode {
   int additional;
 };
 
-// Represents the restriction on TYPE_INTEGER or TYPE_STRING instance of
+// Represents the restriction on Type::INTEGER or Type::STRING instance of
 // base::Value.
 union POLICY_EXPORT RestrictionNode {
   // Offsets into SchemaData::int_enums or SchemaData::string_enums, the