Ensure integrity of ASCII strings.

src/d8.cc

Index: src/d8.cc
diff --git a/src/d8.cc b/src/d8.cc
index ddd4100fa8209cb9d6075c466229a05eaa869ecd..3f0b2245f4e00e002dd7ab086c57a76ed2c13f7b 100644
--- a/src/d8.cc
+++ b/src/d8.cc
@@ -834,8 +834,6 @@ Handle<ObjectTemplate> Shell::CreateGlobalTemplate() {
   global_template->Set(String::New("print"), FunctionTemplate::New(Print));
   global_template->Set(String::New("write"), FunctionTemplate::New(Write));
   global_template->Set(String::New("read"), FunctionTemplate::New(Read));
-  global_template->Set(String::New("readbinary"),
-                       FunctionTemplate::New(ReadBinary));
   global_template->Set(String::New("readbuffer"),
                        FunctionTemplate::New(ReadBuffer));
   global_template->Set(String::New("readline"),
@@ -1056,23 +1054,6 @@ static char* ReadChars(const char* name, int* size_out) {
 }
 
 
-Handle<Value> Shell::ReadBinary(const Arguments& args) {
-  String::Utf8Value filename(args[0]);
-  int size;
-  if (*filename == NULL) {
-    return ThrowException(String::New("Error loading file"));
-  }
-  char* chars = ReadChars(*filename, &size);
-  if (chars == NULL) {
-    return ThrowException(String::New("Error reading file"));
-  }
-  // We skip checking the string for UTF8 characters and use it raw as
-  // backing store for the external string with 8-bit characters.
-  BinaryResource* resource = new BinaryResource(chars, size);
-  return String::NewExternal(resource);
-}
-
-
 Handle<Value> Shell::ReadBuffer(const Arguments& args) {
   String::Utf8Value filename(args[0]);
   int length;