Use v8::MicrotasksScope internally in V8RecursionScope.

extensions/renderer/v8_helpers.h

 // 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.
 
 #ifndef EXTENSIONS_RENDERER_V8_HELPERS_H_
 #define EXTENSIONS_RENDERER_V8_HELPERS_H_
 
 #include <stdint.h>
 #include <string.h>
 
 #include "base/strings/string_number_conversions.h"
+#include "third_party/WebKit/public/web/WebScopedMicrotaskSuppression.h"
 #include "v8/include/v8.h"
 
 namespace extensions {
 namespace v8_helpers {
 
 // Helper functions for V8 APIs.
 
 // Converts |str| to a V8 string. Returns true on success.
 inline bool ToV8String(v8::Isolate* isolate,
                        const char* str,
@@ skipping 143 matching lines @@
       .ToLocalChecked();
 }
 
 // Wraps v8::Function::Call(). Returns true on success.
 inline bool CallFunction(v8::Local<v8::Context> context,
                          v8::Local<v8::Function> function,
                          v8::Local<v8::Value> recv,
                          int argc,
                          v8::Local<v8::Value> argv[],
                          v8::Local<v8::Value>* out) {
+  blink::WebScopedMicrotaskSuppression microtasks_scope;
   return function->Call(context, recv, argc, argv).ToLocal(out);
 }
 
 }  // namespace v8_helpers
 }  // namespace extensions
 
 #endif  // EXTENSIONS_RENDERER_V8_HELPERS_H_