Move IsValidOriginIdentifier into appropriate header

storage/common/database/database_identifier.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 "storage/common/database/database_identifier.h"
 
 #include <stddef.h>
 
 #include "base/macros.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "url/url_canon.h"
 
 namespace storage {
 
 // static
 std::string GetIdentifierFromOrigin(const GURL& origin) {
   return DatabaseIdentifier::CreateFromOrigin(origin).ToString();
 }
 
 // static
 GURL GetOriginFromIdentifier(const std::string& identifier) {
   return DatabaseIdentifier::Parse(identifier).ToOrigin();
 }
 
+// static
+bool IsValidOriginIdentifier(const std::string& identifier) {
+  return GetOriginFromIdentifier(identifier).is_valid();
+}
+
 static bool SchemeIsUnique(const std::string& scheme) {
   return scheme == "about" || scheme == "data" || scheme == "javascript";
 }
 
 // static
 const DatabaseIdentifier DatabaseIdentifier::UniqueFileIdentifier() {
   return DatabaseIdentifier("", "", 0, true, true);
 }
 
 // static
@@ skipping 103 matching lines @@
   if (is_file_)
     return GURL("file:///");
   if (is_unique_)
     return GURL();
   if (port_ == 0)
     return GURL(scheme_ + "://" + hostname_);
   return GURL(scheme_ + "://" + hostname_ + ":" + base::IntToString(port_));
 }
 
 }  // namespace storage