Rework startup-data-util.

src/startup-data-util.h

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 
 #ifndef V8_STARTUP_DATA_UTIL_H_
 #define V8_STARTUP_DATA_UTIL_H_
 
 #include "include/v8.h"
 
 namespace v8 {
+namespace internal {
 
-#ifdef V8_USE_EXTERNAL_STARTUP_DATA
-// Helper class to load the startup data files from disk.
+// Helper functions to load external startup data.
 //
 // This is meant as a convenience for stand-alone binaries like d8, cctest,
 // unittest. A V8 embedder would likely either handle startup data on their
 // own or just disable the feature if they don't want to handle it at all,
-// while tools like cctest need to work in either configuration. Hence this is
-// not meant for inclusion in the general v8 library.
-class StartupDataHandler {
- public:
-  // Load startup data, and call the v8::V8::Set*DataBlob API functions.
-  //
-  // natives_blob and snapshot_blob will be loaded realitive to exec_path,
-  // which would usually be the equivalent of argv[0].
-  StartupDataHandler(const char* exec_path, const char* natives_blob,
-                     const char* snapshot_blob);
-  ~StartupDataHandler();
+// while tools like cctest need to work in either configuration.
 
- private:
-  static char* RelativePath(char** buffer, const char* exec_path,
-                            const char* name);
+void InitializeExternalStartupData(const char* directory_path);
 
-  void LoadFromFiles(const char* natives_blob, const char* snapshot_blob);
+void InitializeExternalStartupData(const char* natives_blob,
+                                   const char* snapshot_blob);
 
-  void Load(const char* blob_file, v8::StartupData* startup_data,
-            void (*setter_fn)(v8::StartupData*));
-
-  v8::StartupData natives_;
-  v8::StartupData snapshot_;
-
-  // Disallow copy & assign.
-  StartupDataHandler(const StartupDataHandler& other);
-  void operator=(const StartupDataHandler& other);
-};
-#endif  // V8_USE_EXTERNAL_STARTUP_DATA
-
+}  // namespace internal
 }  // namespace v8
 
 #endif  // V8_STARTUP_DATA_UTIL_H_