Remove remaining calls to deprecated MessageLoop methods on Mac.

chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_hover_state_unittest.mm

 // Copyright (c) 2012 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.
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
+#include "base/threading/thread_task_runner_handle.h"
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h"
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_hover_state.h"
 #import "chrome/browser/ui/cocoa/cocoa_test_helper.h"
 
 namespace {
 
 class BookmarkBarFolderHoverStateTest : public CocoaTest {
 };
 
 // Hover state machine interface.
@@ skipping 20 matching lines @@
   [bbfhs cancelPendingOpenBookmarkFolderOnHoverButton];
   ASSERT_EQ(kHoverStateClosed, [bbfhs hoverState]);
   ASSERT_EQ(nil, [bbfhs hoverButton]);
 
   // Test transition from closed to opening.
   ASSERT_EQ(kHoverStateClosed, [bbfhs hoverState]);
   [bbfhs scheduleOpenBookmarkFolderOnHoverButton:button];
   ASSERT_EQ(kHoverStateOpening, [bbfhs hoverState]);
 
   // Test transition from opening to opened.
-  message_loop.PostDelayedTask(
-      FROM_HERE,
-      base::MessageLoop::QuitWhenIdleClosure(),
-      base::TimeDelta::FromMilliseconds(
-          bookmarks::kDragHoverOpenDelay * 1000.0 * 1.5));
-  message_loop.Run();
-  ASSERT_EQ(kHoverStateOpen, [bbfhs hoverState]);
-  ASSERT_EQ(button, [bbfhs hoverButton]);
+  {
+    base::RunLoop run_loop;
+    base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
+        FROM_HERE, run_loop.QuitWhenIdleClosure(),
+        base::TimeDelta::FromMilliseconds(bookmarks::kDragHoverOpenDelay *
+                                          1000.0 * 1.5));
+    run_loop.Run();
+    ASSERT_EQ(kHoverStateOpen, [bbfhs hoverState]);
+    ASSERT_EQ(button, [bbfhs hoverButton]);
+  }
 
   // Test transition from opening to opened.
   [bbfhs scheduleCloseBookmarkFolderOnHoverButton];
   ASSERT_EQ(kHoverStateClosing, [bbfhs hoverState]);
 
   // Test transition from closing to open (aka cancel close).
   [bbfhs cancelPendingCloseBookmarkFolderOnHoverButton];
   ASSERT_EQ(kHoverStateOpen, [bbfhs hoverState]);
   ASSERT_EQ(button, [bbfhs hoverButton]);
 
   // Test transition from closing to closed.
-  [bbfhs scheduleCloseBookmarkFolderOnHoverButton];
-  ASSERT_EQ(kHoverStateClosing, [bbfhs hoverState]);
-  message_loop.PostDelayedTask(
-      FROM_HERE,
-      base::MessageLoop::QuitWhenIdleClosure(),
-      base::TimeDelta::FromMilliseconds(
-          bookmarks::kDragHoverCloseDelay * 1000.0 * 1.5));
-  message_loop.Run();
-  ASSERT_EQ(kHoverStateClosed, [bbfhs hoverState]);
-  ASSERT_EQ(nil, [bbfhs hoverButton]);
+  {
+    base::RunLoop run_loop;
+    [bbfhs scheduleCloseBookmarkFolderOnHoverButton];
+    ASSERT_EQ(kHoverStateClosing, [bbfhs hoverState]);
+    base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
+        FROM_HERE, run_loop.QuitWhenIdleClosure(),
+        base::TimeDelta::FromMilliseconds(bookmarks::kDragHoverCloseDelay *
+                                          1000.0 * 1.5));
+    run_loop.Run();
+    ASSERT_EQ(kHoverStateClosed, [bbfhs hoverState]);
+    ASSERT_EQ(nil, [bbfhs hoverButton]);
+  }
 }
 
 }  // namespace