Remove implementation of Panels on OSes other than ChromeOS.

chrome/browser/task_manager/providers/web_contents/panel_task.cc

-// 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.
-
-#include "chrome/browser/task_manager/providers/web_contents/panel_task.h"
-
-#include "base/i18n/rtl.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/ui/panels/panel.h"
-#include "content/public/browser/web_contents.h"
-#include "extensions/browser/extension_registry.h"
-#include "ui/gfx/image/image_skia.h"
-
-namespace task_manager {
-
-namespace {
-
-const gfx::ImageSkia* GetPanelIcon(Panel* panel) {
-  const gfx::Image icon = panel->GetCurrentPageIcon();
-  return !icon.IsEmpty() ? icon.ToImageSkia() : nullptr;
-}
-
-}  // namespace
-
-PanelTask::PanelTask(Panel* panel, content::WebContents* web_contents)
-    : RendererTask(GetCurrentPanelTitle(panel),
-                   GetPanelIcon(panel),
-                   web_contents,
-                   web_contents->GetRenderProcessHost()),
-      panel_(panel) {
-}
-
-PanelTask::~PanelTask() {
-}
-
-void PanelTask::UpdateTitle() {
-  set_title(GetCurrentPanelTitle(panel_));
-}
-
-void PanelTask::UpdateFavicon() {
-  const gfx::ImageSkia* icon = GetPanelIcon(panel_);
-  set_icon(icon ? *icon : gfx::ImageSkia());
-}
-
-Task::Type PanelTask::GetType() const {
-  return Task::EXTENSION;
-}
-
-base::string16 PanelTask::GetCurrentPanelTitle(Panel* panel) const {
-  base::string16 title = panel->GetWindowTitle();
-  base::i18n::AdjustStringForLocaleDirection(&title);
-
-  extensions::ExtensionRegistry* registry =
-      extensions::ExtensionRegistry::Get(panel->profile());
-  const extensions::Extension* extension =
-      registry->enabled_extensions().GetByID(panel->extension_id());
-
-  const bool is_app = extension && extension->is_app();
-  const bool is_incognito = panel->profile()->IsOffTheRecord();
-
-  return PrefixRendererTitle(title,
-                             is_app,
-                             true,  // is_extension.
-                             is_incognito,
-                             false);  // is_background.
-}
-
-}  // namespace task_manager