From 12154adb5016609901550aad5250045670644dd4 Mon Sep 17 00:00:00 2001
From: Petka Antonov <petka_antonov@hotmail.com>
Date: Sat, 25 May 2019 21:03:34 +0300
Subject: [PATCH] Fix #1505

---
 src/async.js         | 51 +++-----------------------------------------
 src/debuggability.js |  2 --
 src/util.js          |  2 --
 3 files changed, 3 insertions(+), 52 deletions(-)

diff --git a/src/async.js b/src/async.js
index e6ea1f660..98873ff6d 100644
--- a/src/async.js
+++ b/src/async.js
@@ -4,7 +4,6 @@ try {throw new Error(); } catch (e) {firstLineError = e;}
 var ASSERT = require("./assert");
 var schedule = require("./schedule");
 var Queue = require("./queue");
-var util = require("./util");
 
 function Async() {
     this._customScheduler = false;
@@ -12,7 +11,6 @@ function Async() {
     this._lateQueue = new Queue(LATE_QUEUE_CAPACITY);
     this._normalQueue = new Queue(NORMAL_QUEUE_CAPACITY);
     this._haveDrainedQueues = false;
-    this._trampolineEnabled = true;
     var self = this;
     this.drainQueues = function () {
         self._drainQueues();
@@ -31,16 +29,6 @@ Async.prototype.hasCustomScheduler = function() {
     return this._customScheduler;
 };
 
-Async.prototype.enableTrampoline = function() {
-    this._trampolineEnabled = true;
-};
-
-Async.prototype.disableTrampolineIfNecessary = function() {
-    if (util.hasDevTools) {
-        this._trampolineEnabled = false;
-    }
-};
-
 Async.prototype.haveItemsQueued = function () {
     return this._isTickUsed || this._haveDrainedQueues;
 };
@@ -94,43 +82,10 @@ function AsyncSettlePromises(promise) {
     this._queueTick();
 }
 
-if (!util.hasDevTools) {
-    Async.prototype.invokeLater = AsyncInvokeLater;
-    Async.prototype.invoke = AsyncInvoke;
-    Async.prototype.settlePromises = AsyncSettlePromises;
-} else {
-    Async.prototype.invokeLater = function (fn, receiver, arg) {
-        if (this._trampolineEnabled) {
-            AsyncInvokeLater.call(this, fn, receiver, arg);
-        } else {
-            this._schedule(function() {
-                setTimeout(function() {
-                    fn.call(receiver, arg);
-                }, 100);
-            });
-        }
-    };
-
-    Async.prototype.invoke = function (fn, receiver, arg) {
-        if (this._trampolineEnabled) {
-            AsyncInvoke.call(this, fn, receiver, arg);
-        } else {
-            this._schedule(function() {
-                fn.call(receiver, arg);
-            });
-        }
-    };
+Async.prototype.invokeLater = AsyncInvokeLater;
+Async.prototype.invoke = AsyncInvoke;
+Async.prototype.settlePromises = AsyncSettlePromises;
 
-    Async.prototype.settlePromises = function(promise) {
-        if (this._trampolineEnabled) {
-            AsyncSettlePromises.call(this, promise);
-        } else {
-            this._schedule(function() {
-                promise._settlePromises();
-            });
-        }
-    };
-}
 
 function _drainQueue(queue) {
     while (queue.length() > 0) {
diff --git a/src/debuggability.js b/src/debuggability.js
index 949290b86..b99939823 100644
--- a/src/debuggability.js
+++ b/src/debuggability.js
@@ -131,14 +131,12 @@ Promise.longStackTraces = function () {
             Promise.prototype._attachExtraTrace = Promise_attachExtraTrace;
             Promise.prototype._dereferenceTrace = Promise_dereferenceTrace;
             Context.deactivateLongStackTraces();
-            async.enableTrampoline();
             config.longStackTraces = false;
         };
         Promise.prototype._captureStackTrace = longStackTracesCaptureStackTrace;
         Promise.prototype._attachExtraTrace = longStackTracesAttachExtraTrace;
         Promise.prototype._dereferenceTrace = longStackTracesDereferenceTrace;
         Context.activateLongStackTraces();
-        async.disableTrampolineIfNecessary();
     }
 };
 
diff --git a/src/util.js b/src/util.js
index 164bb9f4e..1ef4213b6 100644
--- a/src/util.js
+++ b/src/util.js
@@ -399,8 +399,6 @@ var ret = {
     markAsOriginatingFromRejection: markAsOriginatingFromRejection,
     classString: classString,
     copyDescriptors: copyDescriptors,
-    hasDevTools: typeof chrome !== "undefined" && chrome &&
-                 typeof chrome.loadTimes === "function",
     isNode: isNode,
     hasEnvVariables: hasEnvVariables,
     env: env,