Generate the Chrome policy schema at compile time.

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 025a4373ee75cc50475c824c380f09c635d3e665..40f29aad3a5923cc460ced3ab2e058ef53fa0102 100644
--- a/components/policy/core/common/schema_internal.h
+++ b/components/policy/core/common/schema_internal.h
@@ -16,27 +16,24 @@ namespace internal {
 
 struct POLICY_EXPORT SchemaNode {
   base::Value::Type type;
-
-  // If |type| is TYPE_LIST then this is a SchemaNode* describing the
-  // element type.
-  //
-  // If |type| is TYPE_DICTIONARY then this is a PropertiesNode* that can
-  // contain any number of named properties and optionally a SchemaNode* for
-  // additional properties.
-  //
-  // This is NULL if |type| has any other values.
-  const void* extra;
+  int extra;
 };
 
 struct POLICY_EXPORT PropertyNode {
   const char* key;
-  const SchemaNode* schema;
+  int schema;
 };
 
 struct POLICY_EXPORT PropertiesNode {
-  const PropertyNode* begin;
-  const PropertyNode* end;
-  const SchemaNode* additional;
+  int begin;
+  int end;
+  int additional;
+};
+
+struct POLICY_EXPORT SchemaData {
+  const SchemaNode* schema_nodes;
+  const PropertyNode* property_nodes;
+  const PropertiesNode* properties_nodes;
 };
 
 }  // namespace internal