Move CancelableTaskTracker to //base/task/CancelableTaskTracker.

chrome/browser/ui/cocoa/history_menu_bridge_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 <vector>
 
 #include "base/memory/ref_counted_memory.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_util.h"
@@ skipping 320 matching lines @@
   // Create a fake item.
   HistoryMenuBridge::HistoryItem item;
   item.title = base::ASCIIToUTF16("Title");
   item.url = GURL("http://google.com");
 
   // Request the icon.
   GetFaviconForHistoryItem(&item);
 
   // Make sure the item was modified properly.
   EXPECT_TRUE(item.icon_requested);
-  EXPECT_NE(CancelableTaskTracker::kBadTaskId, item.icon_task_id);
+  EXPECT_NE(base::CancelableTaskTracker::kBadTaskId, item.icon_task_id);
 }
 
 TEST_F(HistoryMenuBridgeTest, GotFaviconData) {
   // Create a dummy bitmap.
   SkBitmap bitmap;
   bitmap.setConfig(SkBitmap::kARGB_8888_Config, 25, 25);
   bitmap.allocPixels();
   bitmap.eraseRGB(255, 0, 0);
 
   // Set up the HistoryItem.
   HistoryMenuBridge::HistoryItem item;
   item.menu_item.reset([[NSMenuItem alloc] init]);
   GetFaviconForHistoryItem(&item);
 
   // Pretend to be called back.
   chrome::FaviconImageResult image_result;
   image_result.image = gfx::Image::CreateFrom1xBitmap(bitmap);
   GotFaviconData(&item, image_result);
 
   // Make sure the callback works.
   EXPECT_FALSE(item.icon_requested);
   EXPECT_TRUE(item.icon.get());
   EXPECT_TRUE([item.menu_item image]);
 }
 
 }  // namespace