Add support for snapshot loading to Sky

sky/tools/packager/loader.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sky/tools/packager/loader.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
 #include "base/strings/string_util.h"
 #include "sky/tools/packager/logging.h"
 #include "sky/tools/packager/scope.h"
 #include "sky/tools/packager/switches.h"
 
 namespace {
 
-static const char kSkyInternalsLibraryName[] = "dart:sky.internals";
-static const char kSkyInternalsURL[] = "package:sky/internals.dart";
-
 std::string Fetch(const std::string& url) {
   base::FilePath path(url);
   std::string source;
   CHECK(base::ReadFileToString(path, &source)) << url;
   return source;
 }
 
 base::FilePath SimplifyPath(const base::FilePath& path) {
   std::vector<base::FilePath::StringType> components;
   path.GetComponents(&components);
@@ skipping 84 matching lines @@
 
   if (tag == Dart_kImportTag)
     return GetLoader().Import(url);
 
   if (tag == Dart_kSourceTag)
     return GetLoader().Source(library, url);
 
   return Dart_NewApiError("Unknown library tag.");
 }
 
-void LoadSkyInternals() {
-  DartApiScope api_scope;
-
-  Dart_Handle library_name = StringToDart(kSkyInternalsLibraryName);
-  std::string url = GetLoader().CanonicalizePackageURL(kSkyInternalsURL);
-  LogIfError(Dart_LoadLibrary(library_name, StringToDart(Fetch(url)), 0, 0));
-}
-
 void LoadScript(const std::string& url) {
   LogIfError(
       Dart_LoadScript(StringToDart(url), StringToDart(Fetch(url)), 0, 0));
 }