Execute end of scope tasks in isolate's MicrotasksCompletedCallback.

third_party/WebKit/Source/core/dom/Microtask.cpp

Index: third_party/WebKit/Source/core/dom/Microtask.cpp
diff --git a/third_party/WebKit/Source/core/dom/Microtask.cpp b/third_party/WebKit/Source/core/dom/Microtask.cpp
index 933dbe5091f2f44175fbf1c38f13dee7b04abd6f..488c577f79f8dac4d4c285c74b6d0889169aa8b3 100644
--- a/third_party/WebKit/Source/core/dom/Microtask.cpp
+++ b/third_party/WebKit/Source/core/dom/Microtask.cpp
@@ -31,7 +31,6 @@
 #include "core/dom/Microtask.h"
 
 #include "bindings/core/v8/V8PerIsolateData.h"
-#include "bindings/core/v8/V8RecursionScope.h"
 #include "platform/ScriptForbiddenScope.h"
 #include "platform/Task.h"
 #include "public/platform/WebTaskRunner.h"
@@ -46,19 +45,10 @@ void Microtask::performCheckpoint(v8::Isolate* isolate)
     if (isolateData->recursionLevel() || isolateData->performingMicrotaskCheckpoint() || isolateData->destructionPending() || ScriptForbiddenScope::isScriptForbidden())
         return;
     isolateData->setPerformingMicrotaskCheckpoint(true);
-    {
-        // Ensure that end-of-task-or-microtask actions are performed.
-        V8RecursionScope recursionScope(isolate);
-        isolate->RunMicrotasks();
-    }
+    isolate->RunMicrotasks();
     isolateData->setPerformingMicrotaskCheckpoint(false);
 }
 
-bool Microtask::performingCheckpoint(v8::Isolate* isolate)
-{
-    return V8PerIsolateData::from(isolate)->performingMicrotaskCheckpoint();
-}
-
 static void microtaskFunctionCallback(void* data)
 {
     OwnPtr<WebTaskRunner::Task> task = adoptPtr(static_cast<WebTaskRunner::Task*>(data));