Infrastructure for reading V8's initial snapshot from external files

gin/test/file_runner.cc

 // Copyright 2013 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 "gin/test/file_runner.h"
 
 #include "base/files/file_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
 #include "gin/array_buffer.h"
 #include "gin/converter.h"
 #include "gin/modules/console.h"
 #include "gin/modules/module_registry.h"
 #include "gin/public/context_holder.h"
 #include "gin/public/isolate_holder.h"
 #include "gin/test/file.h"
 #include "gin/test/gc.h"
 #include "gin/test/gtest.h"
 #include "gin/try_catch.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+#ifdef V8_USE_EXTERNAL_STARTUP_DATA
+#include "gin/public/isolate_holder.h"
+#endif
+
 namespace gin {
 
 namespace {
 
 std::vector<base::FilePath> GetModuleSearchPaths() {
   std::vector<base::FilePath> search_paths(2);
   PathService::Get(base::DIR_SOURCE_ROOT, &search_paths[0]);
   PathService::Get(base::DIR_EXE, &search_paths[1]);
   search_paths[1] = search_paths[1].AppendASCII("gen");
   return search_paths;
@@ skipping 19 matching lines @@
 }
 
 void RunTestFromFile(const base::FilePath& path, FileRunnerDelegate* delegate,
                      bool run_until_idle) {
   ASSERT_TRUE(base::PathExists(path)) << path.LossyDisplayName();
   std::string source;
   ASSERT_TRUE(ReadFileToString(path, &source));
 
   base::MessageLoop message_loop;
 
+#ifdef V8_USE_EXTERNAL_STARTUP_DATA
+  gin::IsolateHolder::LoadV8Snapshot();
+#endif
+
   gin::IsolateHolder::Initialize(gin::IsolateHolder::kStrictMode,
                                  gin::ArrayBufferAllocator::SharedInstance());
   gin::IsolateHolder instance;
   gin::ShellRunner runner(delegate, instance.isolate());
   {
     gin::Runner::Scope scope(&runner);
     v8::V8::SetCaptureStackTraceForUncaughtExceptions(true);
     runner.Run(source, path.AsUTF8Unsafe());
 
     if (run_until_idle) {
       message_loop.RunUntilIdle();
     } else {
       message_loop.Run();
     }
 
     v8::Handle<v8::Value> result = runner.global()->Get(
         StringToSymbol(runner.GetContextHolder()->isolate(), "result"));
     EXPECT_EQ("PASS", V8ToString(result));
   }
 }
 
 }  // namespace gin