Remove HostDesktopType from task manager

chrome/browser/task_manager/task_manager.h

 // 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.
 
 #ifndef CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_H_
 #define CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 66 matching lines @@
   // observers to completely refresh themselves (for example, the creation of
   // a background resource in a process). Results in all observers receiving
   // OnModelChanged() events.
   void ModelChanged();
 
   // Returns the singleton instance (and initializes it if necessary).
   static TaskManager* GetInstance();
 
   TaskManagerModel* model() const { return model_.get(); }
 
-  void OpenAboutMemory(chrome::HostDesktopType desktop_type);
+  void OpenAboutMemory();
 
  private:
   FRIEND_TEST_ALL_PREFIXES(TaskManagerTest, Basic);
   FRIEND_TEST_ALL_PREFIXES(TaskManagerTest, Resources);
   FRIEND_TEST_ALL_PREFIXES(TaskManagerTest, RefreshCalled);
   FRIEND_TEST_ALL_PREFIXES(TaskManagerWindowControllerTest, Init);
   FRIEND_TEST_ALL_PREFIXES(TaskManagerWindowControllerTest, Sort);
   FRIEND_TEST_ALL_PREFIXES(TaskManagerWindowControllerTest,
                            SelectionAdaptsToSorting);
   FRIEND_TEST_ALL_PREFIXES(TaskManagerWindowControllerTest,
@@ skipping 451 matching lines @@
   // All per-Resource values are stored here.
   mutable PerResourceCache per_resource_cache_;
 
   // All per-Process values are stored here.
   mutable PerProcessCache per_process_cache_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskManagerModel);
 };
 
 #endif  // CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_H_