html_viewer: check reserved network addresses.

mojo/services/html_viewer/blink_platform_impl.cc

Index: mojo/services/html_viewer/blink_platform_impl.cc
diff --git a/mojo/services/html_viewer/blink_platform_impl.cc b/mojo/services/html_viewer/blink_platform_impl.cc
index 048fdfeb826e20215f2af487639499d6faa5572a..5c02395379308433a9201ceb371910031d945e94 100644
--- a/mojo/services/html_viewer/blink_platform_impl.cc
+++ b/mojo/services/html_viewer/blink_platform_impl.cc
@@ -17,6 +17,7 @@
 #include "net/base/data_url.h"
 #include "net/base/mime_util.h"
 #include "net/base/net_errors.h"
+#include "net/base/net_util.h"
 #include "third_party/WebKit/public/platform/WebWaitableEvent.h"
 
 namespace html_viewer {
@@ -209,6 +210,14 @@ blink::WebURLError BlinkPlatformImpl::cancelledError(const blink::WebURL& url)
   return error;
 }
 
+bool BlinkPlatformImpl::isReservedIPAddress(
+    const blink::WebString& host) const {
+  net::IPAddressNumber address;
+  if (!net::ParseURLHostnameToNumber(host.utf8(), &address))
+    return false;
+  return net::IsIPAddressReserved(address);
+}
+
 blink::WebThread* BlinkPlatformImpl::createThread(const char* name) {
   return new WebThreadImpl(name);
 }