Initialize V8 sandbox in samples

Bug: v8:10391
Change-Id: If54ba6ddaabd14e5f4c232cdc3c29746f89e1cb3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3455822Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Samuel Groß <saelo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79068}

samples/hello-world.cc

@@ -20,6 +20,12 @@ int main(int argc, char* argv[]) {
   v8::V8::InitializeExternalStartupData(argv[0]);
   std::unique_ptr<v8::Platform> platform = v8::platform::NewDefaultPlatform();
   v8::V8::InitializePlatform(platform.get());
+#ifdef V8_SANDBOX
+  if (!v8::V8::InitializeSandbox()) {
+    fprintf(stderr, "Error initializing the V8 sandbox\n");
+    return 1;
+  }
+#endif
   v8::V8::Initialize();
 
   // Create a new Isolate and make it the current one.

samples/process.cc

@@ -703,6 +703,12 @@ int main(int argc, char* argv[]) {
   v8::V8::InitializeExternalStartupData(argv[0]);
   std::unique_ptr<v8::Platform> platform = v8::platform::NewDefaultPlatform();
   v8::V8::InitializePlatform(platform.get());
+#ifdef V8_SANDBOX
+  if (!v8::V8::InitializeSandbox()) {
+    fprintf(stderr, "Error initializing the V8 sandbox\n");
+    return 1;
+  }
+#endif
   v8::V8::Initialize();
   map<string, string> options;
   string file;

samples/shell.cc

@@ -73,6 +73,12 @@ int main(int argc, char* argv[]) {
   v8::V8::InitializeExternalStartupData(argv[0]);
   std::unique_ptr<v8::Platform> platform = v8::platform::NewDefaultPlatform();
   v8::V8::InitializePlatform(platform.get());
+#ifdef V8_SANDBOX
+  if (!v8::V8::InitializeSandbox()) {
+    fprintf(stderr, "Error initializing the V8 sandbox\n");
+    return 1;
+  }
+#endif
   v8::V8::Initialize();
   v8::V8::SetFlagsFromCommandLine(&argc, argv, true);
   v8::Isolate::CreateParams create_params;