Ignore unknown attributes when parsing JSON schemas.

components/json_schema/json_schema_validator_unittest.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 "base/values.h"
 #include "components/json_schema/json_schema_validator.h"
 #include "components/json_schema/json_schema_validator_unittest_base.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 class JSONSchemaValidatorCPPTest : public JSONSchemaValidatorTestBase {
@@ skipping 65 matching lines @@
       "}", &error));
   EXPECT_FALSE(JSONSchemaValidator::IsValidSchema(
       "{"
       "  \"type\": \"string\","
       "  \"enum\": [ {} ]"  // "enum" dict values must contain "name".
       "}", &error));
   EXPECT_FALSE(JSONSchemaValidator::IsValidSchema(
       "{"
       "  \"type\": \"string\","
       "  \"enum\": [ { \"name\": {} } ]"  // "enum" name must be a simple value.
-      "}",
-      &error));
+      "}", &error));
   EXPECT_FALSE(JSONSchemaValidator::IsValidSchema(
       "{"
       "  \"type\": \"array\","
       "  \"items\": [ 123 ],"  // "items" must contain a schema or schemas.
       "}", &error));
   EXPECT_TRUE(JSONSchemaValidator::IsValidSchema(
       "{ \"type\": \"object\" }", &error)) << error;
   EXPECT_TRUE(JSONSchemaValidator::IsValidSchema(
       "{ \"type\": [\"object\", \"array\"] }", &error)) << error;
   EXPECT_TRUE(JSONSchemaValidator::IsValidSchema(
@@ skipping 27 matching lines @@
       "      \"items\": ["
       "        { \"type\": \"string\" },"
       "        { \"type\": \"integer\" }"
       "      ]"
       "    }"
       "  },"
       "  \"additionalProperties\": {"
       "    \"type\": \"any\""
       "  }"
       "}", &error)) << error;
+  EXPECT_TRUE(JSONSchemaValidator::IsValidSchema(
+      "{"
+      "  \"type\": \"object\","
+      "  \"unknown attribute\": \"that should just be ignored\""
+      "}",
+      JSONSchemaValidator::OPTIONS_IGNORE_UNKNOWN_ATTRIBUTES,
+      &error)) << error;
+  EXPECT_FALSE(JSONSchemaValidator::IsValidSchema(
+      "{"
+      "  \"type\": \"object\","
+      "  \"unknown attribute\": \"that will cause a failure\""
+      "}", 0, &error)) << error;
 }