Infrastructure for reading V8's initial snapshot from external files

content/test/content_test_launcher.cc

Index: content/test/content_test_launcher.cc
diff --git a/content/test/content_test_launcher.cc b/content/test/content_test_launcher.cc
index 92234425ee3fed98aeec145307e44f0e9a108182..05c29c8baba224c4938f3587b6997c4183d02b76 100644
--- a/content/test/content_test_launcher.cc
+++ b/content/test/content_test_launcher.cc
@@ -18,6 +18,9 @@
 #include "content/public/test/content_test_suite_base.h"
 #include "content/shell/app/shell_main_delegate.h"
 #include "content/shell/common/shell_switches.h"
+#ifdef V8_USE_EXTERNAL_STARTUP_DATA
+#include "gin/public/isolate_holder.h"
+#endif // V8_USE_EXTERNAL_STARTUP_DATA
 #include "media/base/media_switches.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ -54,6 +57,9 @@ class ContentBrowserTestSuite : public ContentTestSuiteBase {
 #if defined(OS_ANDROID)
     base::i18n::AllowMultipleInitializeCallsForTesting();
     base::i18n::InitializeICU();
+#ifdef V8_USE_EXTERNAL_STARTUP_DATA
+    gin::IsolateHolder::LoadV8Snapshot();
+#endif // V8_USE_EXTERNAL_STARTUP_DATA
 
     // This needs to be done before base::TestSuite::Initialize() is called,
     // as it also tries to set MessagePumpForUIFactory.