Move JSON schema validator code into its own directory in chrome/common

chrome/common/json_schema_constants.h

Index: chrome/common/json_schema_constants.h
diff --git a/chrome/common/json_schema_constants.h b/chrome/common/json_schema_constants.h
deleted file mode 100644
index 8e3a7ee028ab84a7e18722d92799a4fafbe8c534..0000000000000000000000000000000000000000
--- a/chrome/common/json_schema_constants.h
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2012 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.
-
-#ifndef CHROME_COMMON_JSON_SCHEMA_CONSTANTS_H_
-#define CHROME_COMMON_JSON_SCHEMA_CONSTANTS_H_
-
-// These constants are shared by code that uses JSON schemas.
-namespace json_schema_constants {
-
-extern const char kAdditionalProperties[];
-extern const char kAny[];
-extern const char kArray[];
-extern const char kBoolean[];
-extern const char kChoices[];
-extern const char kEnum[];
-extern const char kId[];
-extern const char kInteger[];
-extern const char kItems[];
-extern const char kMaximum[];
-extern const char kMaxItems[];
-extern const char kMaxLength[];
-extern const char kMinimum[];
-extern const char kMinItems[];
-extern const char kMinLength[];
-extern const char kNull[];
-extern const char kNumber[];
-extern const char kObject[];
-extern const char kOptional[];
-extern const char kPattern[];
-extern const char kProperties[];
-extern const char kRef[];
-extern const char kString[];
-extern const char kType[];
-
-}  // namespace json_schema_constants
-
-#endif  // CHROME_COMMON_JSON_SCHEMA_CONSTANTS_H_