Revert of Remove V8RecrusionScope, cleanup call sites.

components/guest_view/renderer/guest_view_request.cc

 // 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 "components/guest_view/renderer/guest_view_request.h"
 
 #include <tuple>
 #include <utility>
 
 #include "components/guest_view/common/guest_view_messages.h"
 #include "components/guest_view/renderer/guest_view_container.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_view.h"
 #include "third_party/WebKit/public/web/WebLocalFrame.h"
 #include "third_party/WebKit/public/web/WebRemoteFrame.h"
+#include "third_party/WebKit/public/web/WebScopedMicrotaskSuppression.h"
 #include "third_party/WebKit/public/web/WebView.h"
 
 namespace guest_view {
 
 GuestViewRequest::GuestViewRequest(GuestViewContainer* container,
                                    v8::Local<v8::Function> callback,
                                    v8::Isolate* isolate)
     : container_(container),
       callback_(isolate, callback),
       isolate_(isolate) {
 }
 
 GuestViewRequest::~GuestViewRequest() {
 }
 
 void GuestViewRequest::ExecuteCallbackIfAvailable(
     int argc,
     scoped_ptr<v8::Local<v8::Value>[]> argv) {
   if (callback_.IsEmpty())
     return;
 
   v8::HandleScope handle_scope(isolate());
   v8::Local<v8::Function> callback =
       v8::Local<v8::Function>::New(isolate_, callback_);
   v8::Local<v8::Context> context = callback->CreationContext();
   if (context.IsEmpty())
     return;
 
   v8::Context::Scope context_scope(context);
-  v8::MicrotasksScope microtasks(
-      isolate(), v8::MicrotasksScope::kDoNotRunMicrotasks);
+  blink::WebScopedMicrotaskSuppression suppression;
 
   callback->Call(context->Global(), argc, argv.get());
 }
 
 GuestViewAttachRequest::GuestViewAttachRequest(
     GuestViewContainer* container,
     int guest_instance_id,
     scoped_ptr<base::DictionaryValue> params,
     v8::Local<v8::Function> callback,
     v8::Isolate* isolate)
@@ skipping 68 matching lines @@
     return;
 
   container()->render_frame()->DetachGuest(container()->element_instance_id());
 }
 
 void GuestViewDetachRequest::HandleResponse(const IPC::Message& message) {
   ExecuteCallbackIfAvailable(0 /* argc */, nullptr);
 }
 
 }  // namespace guest_view