fix: use message handle api specific to embedders

BUILD.gn

@@ -362,7 +362,6 @@ source_set("electron_lib") {
     "//services/viz/privileged/mojom/compositing",
     "//skia",
     "//third_party/blink/public:blink",
-    "//third_party/blink/renderer/core/execution_context",
     "//third_party/boringssl",
     "//third_party/electron_node:node_lib",
     "//third_party/inspector_protocol:crdtp",

patches/chromium/.patches

@@ -90,7 +90,6 @@ fix_account_for_print_preview_disabled_when_printing_to_pdf.patch
 web_contents.patch
 ui_gtk_public_header.patch
 refactor_expose_cursor_changes_to_the_webcontentsobserver.patch
-expose_blink_renderer_execution_context.patch
 crash_allow_setting_more_options.patch
 breakpad_treat_node_processes_as_browser_processes.patch
 upload_list_add_loadsync_method.patch

patches/chromium/expose_blink_renderer_execution_context.patch

@@ -1,23 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Andy Locascio <andy@slack-corp.com>
-Date: Fri, 15 May 2020 12:20:08 -0700
-Subject: expose blink/renderer/execution_context
-
-Refs: https://github.com/electron/electron/pull/23379/commits/b67334e781d2c8c01972f65e2d574e621ac79964#, https://chromium-review.googlesource.com/c/chromium/src/+/1952124
-
-diff --git a/third_party/blink/renderer/core/execution_context/BUILD.gn b/third_party/blink/renderer/core/execution_context/BUILD.gn
-index 88dfb8a31e1640f5add7a34f983bdd1b5ae6e345..d71ef2f3784d16b603f2dbaf64279db990efb314 100644
---- a/third_party/blink/renderer/core/execution_context/BUILD.gn
-+++ b/third_party/blink/renderer/core/execution_context/BUILD.gn
-@@ -5,6 +5,11 @@
- import("//third_party/blink/renderer/core/core.gni")
- 
- blink_core_sources("execution_context") {
-+  visibility = [
-+    "//third_party/blink/renderer/core/*",
-+    "//electron:*",
-+  ]
-+
-   sources = [
-     "agent.cc",
-     "agent.h",

shell/browser/api/message_port.cc

@@ -21,7 +21,6 @@
 #include "third_party/blink/public/common/messaging/transferable_message.h"
 #include "third_party/blink/public/common/messaging/transferable_message_mojom_traits.h"
 #include "third_party/blink/public/mojom/messaging/transferable_message.mojom.h"
-#include "third_party/blink/renderer/core/execution_context/execution_context.h"
 
 namespace electron {
 
@@ -126,8 +125,7 @@ void MessagePort::Entangle(blink::MessagePortDescriptor port) {
   v8::Isolate* isolate = v8::Isolate::GetCurrent();
   v8::HandleScope scope(isolate);
   connector_ = std::make_unique<mojo::Connector>(
-      port_.TakeHandleToEntangle(
-          blink::ExecutionContext::From(isolate->GetCurrentContext())),
+      port_.TakeHandleToEntangleWithEmbedder(),
       mojo::Connector::SINGLE_THREADED_SEND,
       base::ThreadTaskRunnerHandle::Get());
   connector_->PauseIncomingMethodCallProcessing();