chrome/browser/ui: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

chrome/browser/ui/views/toolbar/toolbar_button.cc

 // Copyright 2013 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 "chrome/browser/ui/views/toolbar/toolbar_button.h"
 
 #include "base/bind.h"
+#include "base/location.h"
+#include "base/single_thread_task_runner.h"
+#include "base/thread_task_runner_handle.h"
 #include "chrome/browser/ui/views/location_bar/location_bar_view.h"
 #include "ui/accessibility/ax_view_state.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/models/menu_model.h"
 #include "ui/base/theme_provider.h"
 #include "ui/gfx/display.h"
 #include "ui/gfx/screen.h"
 #include "ui/strings/grit/ui_strings.h"
 #include "ui/views/controls/button/label_button_border.h"
 #include "ui/views/controls/menu/menu_item_view.h"
@@ skipping 39 matching lines @@
 bool ToolbarButton::OnMousePressed(const ui::MouseEvent& event) {
   if (enabled() && ShouldShowMenu() &&
       IsTriggerableEvent(event) && HitTestPoint(event.location())) {
     // Store the y pos of the mouse coordinates so we can use them later to
     // determine if the user dragged the mouse down (which should pop up the
     // drag down menu immediately, instead of waiting for the timer)
     y_position_on_lbuttondown_ = event.y();
 
     // Schedule a task that will show the menu.
     const int kMenuTimerDelay = 500;
-    base::MessageLoop::current()->PostDelayedTask(
-        FROM_HERE,
-        base::Bind(&ToolbarButton::ShowDropDownMenu,
-                   show_menu_factory_.GetWeakPtr(),
-                   ui::GetMenuSourceTypeForEvent(event)),
+    base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
+        FROM_HERE, base::Bind(&ToolbarButton::ShowDropDownMenu,
+                              show_menu_factory_.GetWeakPtr(),
+                              ui::GetMenuSourceTypeForEvent(event)),
         base::TimeDelta::FromMilliseconds(kMenuTimerDelay));
   }
   return LabelButton::OnMousePressed(event);
 }
 
 bool ToolbarButton::OnMouseDragged(const ui::MouseEvent& event) {
   bool result = LabelButton::OnMouseDragged(event);
 
   if (show_menu_factory_.HasWeakPtrs()) {
     // If the mouse is dragged to a y position lower than where it was when
@@ skipping 163 matching lines @@
   SetMouseHandler(NULL);
 
   // Set the state back to normal after the drop down menu is closed.
   if (state_ != STATE_DISABLED)
     SetState(STATE_NORMAL);
 }
 
 const char* ToolbarButton::GetClassName() const {
   return "ToolbarButton";
 }