Support external startup data in V8.

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 7d4ea166396175cf496e694978153abe8397e5e6..ee0616201b5fb572fdb3034c0afb4d0b98a53ff9 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -25,9 +25,7 @@
 #include "icu_util.h"
 #include "json-parser.h"
 #include "messages.h"
-#ifdef COMPRESS_STARTUP_DATA_BZ2
 #include "natives.h"
-#endif
 #include "parser.h"
 #include "platform.h"
 #include "platform/time.h"
@@ -349,6 +347,24 @@ void V8::SetDecompressedStartupData(StartupData* decompressed_data) {
 }
 
 
+void V8::SetNativesDataBlob(StartupData* natives_blob) {
+#ifdef V8_USE_EXTERNAL_STARTUP_DATA
+  i::SetNativesFromFile(natives_blob);
+#else
+  CHECK(false);
+#endif
+}
+
+
+void V8::SetSnapshotDataBlob(StartupData* snapshot_blob) {
+#ifdef V8_USE_EXTERNAL_STARTUP_DATA
+  i::SetSnapshotFromFile(snapshot_blob);
+#else
+  CHECK(false);
+#endif
+}
+
+
 void V8::SetFatalErrorHandler(FatalErrorCallback that) {
   i::Isolate* isolate = i::Isolate::UncheckedCurrent();
   isolate->set_exception_behavior(that);