[DevTools] removed promise instrumentation from blink

third_party/WebKit/Source/bindings/core/v8/ScriptPromiseResolver.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 
 #include "core/dom/ExecutionContext.h"
 #include "core/dom/TaskRunnerHelper.h"
-#include "core/probe/CoreProbes.h"
 
 namespace blink {
 
 ScriptPromiseResolver::ScriptPromiseResolver(ScriptState* script_state)
     : SuspendableObject(ExecutionContext::From(script_state)),
       state_(kPending),
       script_state_(script_state),
       timer_(TaskRunnerHelper::Get(TaskType::kMicrotask, GetExecutionContext()),
              this,
              &ScriptPromiseResolver::OnTimerFired),
       resolver_(script_state) {
   if (GetExecutionContext()->IsContextDestroyed()) {
     state_ = kDetached;
     resolver_.Clear();
   }
-  probe::AsyncTaskScheduled(GetExecutionContext(), "Promise", this);

[dgozman, 2017/05/08 23:28:05]

This also removes trace event.

 }
 
 void ScriptPromiseResolver::Suspend() {
   timer_.Stop();
 }
 
 void ScriptPromiseResolver::Resume() {
   if (state_ == kResolving || state_ == kRejecting)
     timer_.StartOneShot(0, BLINK_FROM_HERE);
 }
 
 void ScriptPromiseResolver::Detach() {
   if (state_ == kDetached)
     return;
   timer_.Stop();
   state_ = kDetached;
   resolver_.Clear();
   value_.Clear();
   keep_alive_.Clear();
-  probe::AsyncTaskCanceled(GetExecutionContext(), this);
 }
 
 void ScriptPromiseResolver::KeepAliveWhilePending() {
   // keepAliveWhilePending() will be called twice if the resolver
   // is created in a suspended execution context and the resolver
   // is then resolved/rejected while in that suspended state.
   if (state_ == kDetached || keep_alive_)
     return;
 
   // Keep |this| around while the promise is Pending;
   // see detach() for the dual operation.
   keep_alive_ = this;
 }
 
 void ScriptPromiseResolver::OnTimerFired(TimerBase*) {
   DCHECK(state_ == kResolving || state_ == kRejecting);
   if (!GetScriptState()->ContextIsValid()) {
     Detach();
     return;
   }
 
   ScriptState::Scope scope(script_state_.Get());
   ResolveOrRejectImmediately();
 }
 
 void ScriptPromiseResolver::ResolveOrRejectImmediately() {
   DCHECK(!GetExecutionContext()->IsContextDestroyed());
   DCHECK(!GetExecutionContext()->IsContextSuspended());
   {
-    probe::AsyncTask async_task(GetExecutionContext(), this);
     if (state_ == kResolving) {
       resolver_.Resolve(value_.NewLocal(script_state_->GetIsolate()));
     } else {
       ASSERT(state_ == kRejecting);
       resolver_.Reject(value_.NewLocal(script_state_->GetIsolate()));
     }
   }
   Detach();
 }
 
 DEFINE_TRACE(ScriptPromiseResolver) {
   SuspendableObject::Trace(visitor);
 }
 
 }  // namespace blink