const char kFileSystemScheme[] = "filesystem";
const char kFtpScheme[] = "ftp";
const char kGuestScheme[] = "chrome-guest";
-const char kHttpScheme[] = "http";
-const char kHttpsScheme[] = "https";
const char kJavaScriptScheme[] = "javascript";
const char kMailToScheme[] = "mailto";
const char kMetadataScheme[] = "metadata";