Remove implementation of Panels on OSes other than ChromeOS.

chrome/browser/task_manager/web_contents_tags.h

 // Copyright 2015 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_WEB_CONTENTS_TAGS_H_
 #define CHROME_BROWSER_TASK_MANAGER_WEB_CONTENTS_TAGS_H_
 
 #include "base/macros.h"
 #include "extensions/common/view_type.h"
 
 class BackgroundContents;
-class Panel;
 
 namespace content {
 class WebContents;
 }  // namespace content
 
 namespace task_manager {
 
 // Defines a factory class for creating the TaskManager-specific Tags for the
 // WebContents that are owned by various types of services.
 //
@@ skipping 25 matching lines @@
   // owned by |web_contents|.
   static void CreateForPrerenderContents(content::WebContents* web_contents);
 
   // Tag a WebContents owned by the TabStripModel so that it shows up in the
   // task manager. Calling this function creates a TabContentsTag, and attaches
   // it to |web_contents|. If an instance is already attached, this does
   // nothing. The resulting tag does not have to be cleaned up by the caller, as
   // it is owned by |web_contents|.
   static void CreateForTabContents(content::WebContents* web_contents);
 
-  // Tag a WebContents owned by a |panel| in the PanelManager so that it shows
-  // up in the task manager. Calling this function creates a PanelTag, and
-  // attaches it to |web_contents|. If an instance is already attached, this
-  // does nothing. The resulting tag does not have to be cleaned up by the
-  // caller, as it is owned by |web_contents|.
-  // Note: |web_contents| must be equal to |panel->GetWebContents()|.
-  static void CreateForPanel(content::WebContents* web_contents, Panel* panel);
-
   // Tag a WebContents created for a print preview or background printing so
   // that it shows up in the task manager. Calling this function creates a
   // PrintingTag, and attaches it to |web_contents|. If an instance is already
   // attached, this does nothing. The resulting tag does not have to be cleaned
   // up by the caller, as it is owned by |web_contents|.
   static void CreateForPrintingContents(content::WebContents* web_contents);
 
   // Tag a WebContents owned by a GuestViewBase so that it shows up in the
   // task manager. Calling this function creates a GuestTag, and attaches it to
   // |web_contents|. If an instance is already attached, this does nothing. The
   // resulting tag does not have to be cleaned up by the caller, as it is owned
   // by |web_contents|.
   static void CreateForGuestContents(content::WebContents* web_contents);
 
   // Tag a WebContents that belongs to |extension| so that it shows up in the
   // task manager. Calling this function creates a ExtensionTag, and attaches
   // it to |web_contents|. If an instance is already attached, this does
   // nothing. The resulting tag does not have to be cleaned up by the caller,
   // as it is owned by |web_contents|.
-  // |web_contents| must be of a non-tab, non-guest view, non-panel, or
+  // |web_contents| must be of a non-tab, non-guest view, or
   // non-background contents Extension.
   static void CreateForExtension(content::WebContents* web_contents,
                                  extensions::ViewType view_type);
 
   // Clears the task-manager tag, created by any of the above functions, from
   // the given |web_contents| if any.
   // Clearing the tag is necessary only when you need to re-tag an existing
   // WebContents, to indicate a change in ownership.
   static void ClearTag(content::WebContents* web_contents);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebContentsTags);
 };
 
 }  // namespace task_manager
 
 #endif  // CHROME_BROWSER_TASK_MANAGER_WEB_CONTENTS_TAGS_H_