From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Milan Burda <milan.burda@gmail.com>
Date: Thu, 11 Apr 2019 14:49:20 +0200
Subject: add_contentgpuclient_precreatemessageloop_callback.patch

This adds a ContentGpuClient::PreCreateMessageLoop() callback.
Invoke in GpuMain after SetErrorMode, before starting the message loop.
Allows Electron to restore WER when ELECTRON_DEFAULT_ERROR_MODE is set.

This should be upstreamed.

diff --git a/content/gpu/gpu_main.cc b/content/gpu/gpu_main.cc
index bfb0a24b2a57b4c75f64e0853700174c11df8d48..c9c40aca92fd7e0dde0da62d34120edb8479331a 100644
--- a/content/gpu/gpu_main.cc
+++ b/content/gpu/gpu_main.cc
@@ -262,6 +262,10 @@ int GpuMain(MainFunctionParams parameters) {
   // to the GpuProcessHost once the GpuServiceImpl has started.
   viz::GpuServiceImpl::InstallPreInitializeLogHandler();
 
+  auto* client = GetContentClient()->gpu();
+  if (client)
+    client->PreCreateMessageLoop();
+
   // We are experiencing what appear to be memory-stomp issues in the GPU
   // process. These issues seem to be impacting the task executor and listeners
   // registered to it. Create the task executor on the heap to guard against
@@ -358,7 +362,6 @@ int GpuMain(MainFunctionParams parameters) {
       const_cast<base::CommandLine*>(&command_line), gpu_preferences);
   const bool dead_on_arrival = !init_success;
 
-  auto* client = GetContentClient()->gpu();
   if (client) {
     client->PostSandboxInitialized();
   }
diff --git a/content/public/gpu/content_gpu_client.h b/content/public/gpu/content_gpu_client.h
index 3020e59f491f95740983b01c16e2a5be01d60f67..b25140275ce636717ca60a3cb17eb2f35f50d8be 100644
--- a/content/public/gpu/content_gpu_client.h
+++ b/content/public/gpu/content_gpu_client.h
@@ -30,6 +30,10 @@ class CONTENT_EXPORT ContentGpuClient {
  public:
   virtual ~ContentGpuClient() {}
 
+  // Allows the embedder to perform platform-specific initialization before
+  // creating the message loop.
+  virtual void PreCreateMessageLoop() {}
+
   // Called during initialization once the GpuService has been initialized.
   virtual void GpuServiceInitialized() {}