electron/patches/common/chromium/isolate_holder.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Samuel Attard <samuel.r.attard@gmail.com>
Date: Thu, 18 Oct 2018 17:07:27 -0700
Subject: isolate_holder.patch

Pass pre allocated isolate for initialization, node platform
needs to register on an isolate so that it can be used later
down in the initialization process of an isolate.

diff --git a/gin/isolate_holder.cc b/gin/isolate_holder.cc
index 3332f4936c633f834576ae2eb0a4c59de482881e..801383dffd6d49b174b6b5a4b89e6a1a498da499 100644
--- a/gin/isolate_holder.cc
+++ b/gin/isolate_holder.cc
@@ -52,7 +52,8 @@ IsolateHolder::IsolateHolder(
     AccessMode access_mode,
     AllowAtomicsWaitMode atomics_wait_mode,
     IsolateType isolate_type,
-    IsolateCreationMode isolate_creation_mode)
+    IsolateCreationMode isolate_creation_mode,
+    v8::Isolate* isolate)
     : access_mode_(access_mode), isolate_type_(isolate_type) {
   DCHECK(task_runner);
   DCHECK(task_runner->BelongsToCurrentThread());
@@ -60,7 +61,11 @@ IsolateHolder::IsolateHolder(
   v8::ArrayBuffer::Allocator* allocator = g_array_buffer_allocator;
   CHECK(allocator) << "You need to invoke gin::IsolateHolder::Initialize first";
 
-  isolate_ = v8::Isolate::Allocate();
+  if (!isolate) {
+    isolate_ = v8::Isolate::Allocate();
+  } else {
+    isolate_ = isolate;
+  }
   isolate_data_.reset(
       new PerIsolateData(isolate_, allocator, access_mode_, task_runner));
   if (isolate_creation_mode == IsolateCreationMode::kCreateSnapshot) {
diff --git a/gin/public/isolate_holder.h b/gin/public/isolate_holder.h
index 95844885e478e460b1f03a7d98942bffe263e3d0..fd739ab416b8df71cf192ac178ebf217a5d7816c 100644
--- a/gin/public/isolate_holder.h
+++ b/gin/public/isolate_holder.h
@@ -81,7 +81,8 @@ class GIN_EXPORT IsolateHolder {
       AccessMode access_mode,
       AllowAtomicsWaitMode atomics_wait_mode,
       IsolateType isolate_type,
-      IsolateCreationMode isolate_creation_mode = IsolateCreationMode::kNormal);
+      IsolateCreationMode isolate_creation_mode = IsolateCreationMode::kNormal,
+      v8::Isolate* isolate = nullptr);
   ~IsolateHolder();
 
   // Should be invoked once before creating IsolateHolder instances to