Keep natives source code in external strings instead of putting...

src/bootstrapper.h

Index: src/bootstrapper.h
===================================================================
--- src/bootstrapper.h	(revision 3220)
+++ src/bootstrapper.h	(working copy)
@@ -76,6 +76,25 @@
   static void FreeThreadResources();
 };
 
+
+class NativesExternalStringResource
+    : public v8::String::ExternalAsciiStringResource {
+ public:
+  explicit NativesExternalStringResource(const char* source)
+      : data_(source), length_(strlen(source)) { }
+
+  const char* data() const {
+    return data_;
+  }
+
+  size_t length() const {
+    return length_;
+  }
+ private:
+  const char* data_;
+  size_t length_;
+};
+
 }}  // namespace v8::internal
 
 #endif  // V8_BOOTSTRAPPER_H_