Add additional restriction to policy schema internal (part1)

components/json_schema/json_schema_validator.cc

 // Copyright 2013 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.
 
 #include "components/json_schema/json_schema_validator.h"
 
 #include <algorithm>
 #include <cfloat>
 #include <cmath>
 
@@ skipping 144 matching lines @@
     const ExpectedType* end = kExpectedTypes + arraysize(kExpectedTypes);
     const ExpectedType* entry = std::lower_bound(
         kExpectedTypes, end, it.key(), CompareToString);
     if (entry == end || entry->key != it.key()) {
       if (options & JSONSchemaValidator::OPTIONS_IGNORE_UNKNOWN_ATTRIBUTES)
         continue;
       *error = base::StringPrintf("Invalid attribute %s", it.key().c_str());
       return false;
     }
 
-    if (!it.value().IsType(entry->type)) {
+    // Integer can be converted to double.
+    if (!(it.value().IsType(entry->type) ||
+          (it.value().IsType(base::Value::TYPE_INTEGER) &&
+           entry->type == base::Value::TYPE_DOUBLE))) {
       *error = base::StringPrintf("Invalid value for %s attribute",
                                   it.key().c_str());
       return false;
     }
 
     // base::Value::TYPE_INTEGER attributes must be >= 0.
     // This applies to "minItems", "maxItems", "minLength" and "maxLength".
     if (it.value().IsType(base::Value::TYPE_INTEGER)) {
       int integer_value;
       it.value().GetAsInteger(&integer_value);
@@ skipping 582 matching lines @@
 
   if (*additional_properties_schema) {
     std::string additional_properties_type(schema::kAny);
     CHECK((*additional_properties_schema)->GetString(
         schema::kType, &additional_properties_type));
     return additional_properties_type == schema::kAny;
   } else {
     return default_allow_additional_properties_;
   }
 }