TaskManager: Replace the string "Page" with "Task"

chrome/browser/resources/task_manager/defines.js

 // 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.
 
 /**
  * Whether task manager shows 'Private Memory' instead of 'Phsical Memory'.
  * @const
  */
 var USE_PRIVATE_MEM = false;
 // <if expr="(is_linux or pp_ifdef('chromeos'))">
 // On Linux and ChromeOS, this is true because calculating Phsical Memory is
 // slow.
 USE_PRIVATE_MEM = true;
 // </if>
 
 /*
  * Default columns (column_id, label_id, width, is_default)
  * @const
  */
 var DEFAULT_COLUMNS = [
-  ['title', 'pageColumn', 300, true],
+  ['title', 'taskColumn', 300, true],
   ['profileName', 'profileNameColumn', 120, false],
   ['physicalMemory', 'physicalMemColumn', 80, !USE_PRIVATE_MEM],
   ['sharedMemory', 'sharedMemColumn', 80, false],
   ['privateMemory', 'privateMemColumn', 80, USE_PRIVATE_MEM],
   ['cpuUsage', 'cpuColumn', 80, true],
   ['networkUsage', 'netColumn', 85, true],
   ['processId', 'processIDColumn', 100, false],
   ['webCoreImageCacheSize', 'webcoreImageCacheColumn', 120, false],
   ['webCoreScriptsCacheSize', 'webcoreScriptsCacheColumn', 120, false],
   ['webCoreCSSCacheSize', 'webcoreCSSCacheColumn', 120, false],
   ['fps', 'fpsColumn', 50, true],
   ['sqliteMemoryUsed', 'sqliteMemoryUsedColumn', 80, false],
   ['goatsTeleported', 'goatsTeleportedColumn', 80, false],
   ['v8MemoryAllocatedSize', 'javascriptMemoryAllocatedColumn', 120, false],
 ];
 
 /*
  * Height of each tasks. It is 20px, which is also defined in CSS.
  * @const
  */
 var HEIGHT_OF_TASK = 20;
 
 var COMMAND_CONTEXTMENU_COLUMN_PREFIX = 'columnContextMenu';
 var COMMAND_CONTEXTMENU_TABLE_PREFIX = 'tableContextMenu';
 
 var ENABLED_COLUMNS_KEY = 'enabledColumns';