Remove use of deprecated MessageLoop methods in extensions.

extensions/renderer/render_frame_observer_natives.cc

 // 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 "extensions/renderer/render_frame_observer_natives.h"
 
 #include "base/bind.h"
+#include "base/location.h"
 #include "base/macros.h"
-#include "base/message_loop/message_loop.h"
+#include "base/single_thread_task_runner.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_frame_observer.h"
 #include "extensions/renderer/extension_frame_helper.h"
 #include "extensions/renderer/script_context.h"
 
 namespace extensions {
 
 namespace {
 
 // Deletes itself when done.
 class LoadWatcher : public content::RenderFrameObserver {
  public:
   LoadWatcher(content::RenderFrame* frame,
               const base::Callback<void(bool)>& callback)
       : content::RenderFrameObserver(frame), callback_(callback) {}
 
   void DidCreateDocumentElement() override {
     // Defer the callback instead of running it now to avoid re-entrancy caused
     // by the JavaScript callback.
     ExtensionFrameHelper::Get(render_frame())
         ->ScheduleAtDocumentStart(base::Bind(callback_, true));
     delete this;
   }
 
   void DidFailProvisionalLoad(const blink::WebURLError& error) override {
     // Use PostTask to avoid running user scripts while handling this
     // DidFailProvisionalLoad notification.
-    base::MessageLoop::current()->PostTask(FROM_HERE,
-                                           base::Bind(callback_, false));
+    base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE,
+                                                  base::Bind(callback_, false));
     delete this;
   }
 
  private:
   base::Callback<void(bool)> callback_;
 
   DISALLOW_COPY_AND_ASSIGN(LoadWatcher);
 };
 
 }  // namespace
@@ skipping 29 matching lines @@
 
   v8::Global<v8::Function> v8_callback(context()->isolate(),
                                        args[1].As<v8::Function>());
   base::Callback<void(bool)> callback(
       base::Bind(&RenderFrameObserverNatives::InvokeCallback,
                  weak_ptr_factory_.GetWeakPtr(), base::Passed(&v8_callback)));
   if (ExtensionFrameHelper::Get(frame)->did_create_current_document_element()) {
     // If the document element is already created, then we can call the callback
     // immediately (though use PostTask to ensure that the callback is called
     // asynchronously).
-    base::MessageLoop::current()->PostTask(FROM_HERE,
-                                           base::Bind(callback, true));
+    base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE,
+                                                  base::Bind(callback, true));
   } else {
     new LoadWatcher(frame, callback);
   }
 
   args.GetReturnValue().Set(true);
 }
 
 void RenderFrameObserverNatives::InvokeCallback(
     v8::Global<v8::Function> callback,
     bool succeeded) {
   v8::Isolate* isolate = context()->isolate();
   v8::HandleScope handle_scope(isolate);
   v8::Local<v8::Value> args[] = {v8::Boolean::New(isolate, succeeded)};
   context()->CallFunction(v8::Local<v8::Function>::New(isolate, callback),
                           arraysize(args), args);
 }
 
 }  // namespace extensions