Allow doc.written scripts with a matching domain and registry to execute.

third_party/WebKit/Source/platform/network/NetworkUtils.cpp

Index: third_party/WebKit/Source/platform/network/NetworkUtils.cpp
diff --git a/third_party/WebKit/Source/platform/network/NetworkUtils.cpp b/third_party/WebKit/Source/platform/network/NetworkUtils.cpp
index 57c0b4c7ea7822c0070c6c3fa10307bfee963020..0067a1cd6e4a63477b959c0751c2549cd5bc182b 100644
--- a/third_party/WebKit/Source/platform/network/NetworkUtils.cpp
+++ b/third_party/WebKit/Source/platform/network/NetworkUtils.cpp
@@ -5,6 +5,7 @@
 #include "platform/network/NetworkUtils.h"
 
 #include "net/base/ip_address.h"
+#include "net/base/registry_controlled_domains/registry_controlled_domain.h"
 #include "net/base/url_util.h"
 #include "wtf/text/StringUTF8Adaptor.h"
 #include "wtf/text/WTFString.h"
@@ -28,6 +29,14 @@ bool isLocalHostname(const String& host, bool* isLocal6)
     return net::IsLocalHostname(utf8.asStringPiece(), isLocal6);
 }
 
+String getDomainAndRegistry(const String& host, bool includePrivateRegistries)
+{
+    StringUTF8Adaptor hostUtf8(host);
+    net::registry_controlled_domains::PrivateRegistryFilter registryFilter = includePrivateRegistries ? net::registry_controlled_domains::INCLUDE_PRIVATE_REGISTRIES : net::registry_controlled_domains::EXCLUDE_PRIVATE_REGISTRIES;
+    std::string domain = net::registry_controlled_domains::GetDomainAndRegistry(hostUtf8.asStringPiece(), registryFilter);
+    return String(domain.data(), domain.length());
+}
+
 } // NetworkUtils
 
 } // namespace blink