Move the parsing of "chrome_url_overrides" out of Extension.

chrome/common/extensions/api/url_overrides/url_overrides_handler.h

Index: chrome/common/extensions/api/url_overrides/url_overrides_handler.h
diff --git a/chrome/common/extensions/api/url_overrides/url_overrides_handler.h b/chrome/common/extensions/api/url_overrides/url_overrides_handler.h
new file mode 100644
index 0000000000000000000000000000000000000000..55a047e497b99feb1b98ba5a5d4bb2c717b937be
--- /dev/null
+++ b/chrome/common/extensions/api/url_overrides/url_overrides_handler.h
@@ -0,0 +1,41 @@
+// 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_EXTENSIONS_API_URL_OVERRIDES_URL_OVERRIDES_HANDLER_H_
+#define CHROME_COMMON_EXTENSIONS_API_URL_OVERRIDES_URL_OVERRIDES_HANDLER_H_
+
+#include <string>
+
+#include "chrome/common/extensions/extension.h"
+#include "chrome/common/extensions/manifest_handler.h"
+
+namespace extensions {
+
+class Extension;
+
+struct URLOverridesInfo : public Extension::ManifestData {
+
+typedef std::map<const std::string, GURL> URLOverrideMap;
+
+  // A map of chrome:// hostnames (newtab, downloads, etc.) to Extension URLs
+  // which override the handling of those URLs. (see ExtensionOverrideUI).
+  URLOverrideMap chrome_url_overrides_;
+
+  static const URLOverrideMap GetChromeURLOverrides(const Extension* extension);
+};
+
+// Parses the "chrome_url_overrides" manifest key.
+class URLOverridesHandler : public ManifestHandler {
+ public:
+  URLOverridesHandler();
+  virtual ~URLOverridesHandler();
+
+  virtual bool Parse(const base::Value* value,
+                     Extension* extension,
+                     string16* error) OVERRIDE;
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_COMMON_EXTENSIONS_API_URL_OVERRIDES_URL_OVERRIDES_HANDLER_H_