Revert of Use v8::MicrotasksScope internally in V8RecursionScope.

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

 // Copyright 2015 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/ReadableStreamOperations.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptFunction.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/ScriptValue.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8BindingForTesting.h"
 #include "bindings/core/v8/V8BindingMacros.h"
 #include "bindings/core/v8/V8IteratorResultValue.h"
-#include "bindings/core/v8/V8RecursionScope.h"
 #include "bindings/core/v8/V8ThrowException.h"
 #include "core/dom/Document.h"
 #include "core/streams/ReadableStreamController.h"
 #include "core/streams/UnderlyingSourceBase.h"
 #include "platform/heap/Handle.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include <v8.h>
 
 namespace blink {
 
@@ skipping 106 matching lines @@
     ReadableStreamOperationsTest()
         : m_scope(v8::Isolate::GetCurrent())
         , m_block(isolate())
         , m_document(Document::create())
     {
         scriptState()->setExecutionContext(m_document.get());
     }
     ~ReadableStreamOperationsTest() override
     {
         // Execute all pending microtasks
-        v8::MicrotasksScope::PerformCheckpoint(isolate());
+        isolate()->RunMicrotasks();
         EXPECT_FALSE(m_block.HasCaught());
     }
 
     ScriptState* scriptState() const { return m_scope.scriptState(); }
     v8::Isolate* isolate() const { return scriptState()->isolate(); }
 
     ScriptValue eval(const char* s)
     {
         v8::Local<v8::String> source;
         v8::Local<v8::Script> script;
-        V8RecursionScope::MicrotaskSuppression microtasks(isolate());
         if (!v8Call(v8::String::NewFromUtf8(isolate(), s, v8::NewStringType::kNormal), source)) {
             ADD_FAILURE();
             return ScriptValue();
         }
         if (!v8Call(v8::Script::Compile(scriptState()->context(), source), script)) {
             ADD_FAILURE() << "Compilation fails";
             return ScriptValue();
         }
         return ScriptValue(scriptState(), script->Run(scriptState()->context()));
     }
@@ skipping 84 matching lines @@
 
     Iteration* it1 = new Iteration();
     Iteration* it2 = new Iteration();
     ReadableStreamOperations::read(scriptState(), reader).then(
         Function::createFunction(scriptState(), it1),
         NotReached::createFunction(scriptState()));
     ReadableStreamOperations::read(scriptState(), reader).then(
         Function::createFunction(scriptState(), it2),
         NotReached::createFunction(scriptState()));
 
-    v8::MicrotasksScope::PerformCheckpoint(isolate());
+    isolate()->RunMicrotasks();
     EXPECT_FALSE(it1->isSet());
     EXPECT_FALSE(it2->isSet());
 
     ASSERT_FALSE(evalWithPrintingError("controller.enqueue('hello')").isEmpty());
-    v8::MicrotasksScope::PerformCheckpoint(isolate());
+    isolate()->RunMicrotasks();
     EXPECT_TRUE(it1->isSet());
     EXPECT_TRUE(it1->isValid());
     EXPECT_FALSE(it1->isDone());
     EXPECT_EQ("hello", it1->value());
     EXPECT_FALSE(it2->isSet());
 
     ASSERT_FALSE(evalWithPrintingError("controller.close()").isEmpty());
-    v8::MicrotasksScope::PerformCheckpoint(isolate());
+    isolate()->RunMicrotasks();
     EXPECT_TRUE(it1->isSet());
     EXPECT_TRUE(it1->isValid());
     EXPECT_FALSE(it1->isDone());
     EXPECT_EQ("hello", it1->value());
     EXPECT_TRUE(it2->isSet());
     EXPECT_TRUE(it2->isValid());
     EXPECT_TRUE(it2->isDone());
 }
 
 TEST_F(ReadableStreamOperationsTest, CreateReadableStreamWithCustomUnderlyingSourceAndStrategy)
@@ skipping 22 matching lines @@
     }
     ASSERT_FALSE(reader.isEmpty());
 
     Iteration* it1 = new Iteration();
     Iteration* it2 = new Iteration();
     Iteration* it3 = new Iteration();
     ReadableStreamOperations::read(scriptState(), reader).then(Function::createFunction(scriptState(), it1), NotReached::createFunction(scriptState()));
     ReadableStreamOperations::read(scriptState(), reader).then(Function::createFunction(scriptState(), it2), NotReached::createFunction(scriptState()));
     ReadableStreamOperations::read(scriptState(), reader).then(Function::createFunction(scriptState(), it3), NotReached::createFunction(scriptState()));
 
-    v8::MicrotasksScope::PerformCheckpoint(isolate());
+    isolate()->RunMicrotasks();
 
     EXPECT_EQ(10, underlyingSource->desiredSize());
 
     EXPECT_TRUE(it1->isSet());
     EXPECT_TRUE(it1->isValid());
     EXPECT_FALSE(it1->isDone());
     EXPECT_EQ("a", it1->value());
 
     EXPECT_TRUE(it2->isSet());
     EXPECT_TRUE(it2->isValid());
     EXPECT_FALSE(it2->isDone());
     EXPECT_EQ("b", it2->value());
 
     EXPECT_FALSE(it3->isSet());
 
     underlyingSource->close();
-    v8::MicrotasksScope::PerformCheckpoint(isolate());
+    isolate()->RunMicrotasks();
 
     EXPECT_TRUE(it3->isSet());
     EXPECT_TRUE(it3->isValid());
     EXPECT_TRUE(it3->isDone());
 }
 
 } // namespace
 
 } // namespace blink