[Isolates] Fix compilation of Chrome on Linux.

src/preparser-api.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 143 matching lines @@
   // Only if that pushback buffer at the start of buffer_ isn't sufficient
   // is the following used.
   const uc16* pushback_buffer_end_cache_;
   uc16* pushback_buffer_backing_;
   unsigned pushback_buffer_backing_size_;
 };
 
 
 class StandAloneJavaScriptScanner : public JavaScriptScanner {
  public:
+  StandAloneJavaScriptScanner()
+    : JavaScriptScanner(Isolate::Current()) { }
+
   void Initialize(UC16CharacterStream* source) {
     source_ = source;
     Init();
     // Skip initial whitespace allowing HTML comment ends just like
     // after a newline and scan first token.
     has_line_terminator_before_next_ = true;
     SkipWhiteSpace();
     Scan();
   }
 };
@@ skipping 33 matching lines @@
   return PreParserData(size, data);
 }
 
 }  // namespace v8.
 
 
 // Used by ASSERT macros and other immediate exits.
 extern "C" void V8_Fatal(const char* file, int line, const char* format, ...) {
   exit(EXIT_FAILURE);
 }