Add an 'Idle Wake Ups' metric to the Linux task manager, implement backend.

chrome/browser/ui/views/task_manager_view.cc

 // 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.
 
 #include "chrome/browser/task_manager/task_manager.h"
 
 #include "base/compiler_specific.h"
 #include "base/metrics/stats_table.h"
 #include "base/prefs/pref_service.h"
 #include "base/prefs/scoped_user_pref_update.h"
@@ skipping 313 matching lines @@
                                      ui::TableColumn::RIGHT, -1, 0));
   columns_.back().sortable = true;
   columns_.push_back(ui::TableColumn(
       IDS_TASK_MANAGER_NACL_DEBUG_STUB_PORT_COLUMN,
       ui::TableColumn::RIGHT, -1, 0));
   columns_.back().sortable = true;
   columns_.push_back(
       ui::TableColumn(IDS_TASK_MANAGER_JAVASCRIPT_MEMORY_ALLOCATED_COLUMN,
                       ui::TableColumn::RIGHT, -1, 0));
   columns_.back().sortable = true;
+  // TODO(port) http://crbug.com/120488 for non-Linux.
+#if defined(OS_LINUX)
+  columns_.push_back(ui::TableColumn(IDS_TASK_MANAGER_IDLE_WAKEUPS_COLUMN,
+                                     ui::TableColumn::RIGHT, -1, 0));
+  columns_.back().sortable = true;
+#endif
 
   tab_table_ = new views::TableView(
       table_model_.get(), columns_, views::ICON_AND_TEXT, false);
   tab_table_->SetGrouper(table_model_.get());
 
   // Hide some columns by default
   tab_table_->SetColumnVisibility(IDS_TASK_MANAGER_PROFILE_NAME_COLUMN, false);
   tab_table_->SetColumnVisibility(IDS_TASK_MANAGER_SHARED_MEM_COLUMN, false);
   tab_table_->SetColumnVisibility(IDS_TASK_MANAGER_PRIVATE_MEM_COLUMN, false);
   tab_table_->SetColumnVisibility(IDS_TASK_MANAGER_WEBCORE_IMAGE_CACHE_COLUMN,
                                   false);
   tab_table_->SetColumnVisibility(IDS_TASK_MANAGER_WEBCORE_SCRIPTS_CACHE_COLUMN,
                                   false);
   tab_table_->SetColumnVisibility(IDS_TASK_MANAGER_WEBCORE_CSS_CACHE_COLUMN,
                                   false);
   tab_table_->SetColumnVisibility(IDS_TASK_MANAGER_VIDEO_MEMORY_COLUMN,
                                   false);
   tab_table_->SetColumnVisibility(IDS_TASK_MANAGER_SQLITE_MEMORY_USED_COLUMN,
                                   false);
   tab_table_->SetColumnVisibility(IDS_TASK_MANAGER_NACL_DEBUG_STUB_PORT_COLUMN,
                                   false);
   tab_table_->SetColumnVisibility(
       IDS_TASK_MANAGER_JAVASCRIPT_MEMORY_ALLOCATED_COLUMN, false);
   tab_table_->SetColumnVisibility(IDS_TASK_MANAGER_GOATS_TELEPORTED_COLUMN,
                                   false);
   tab_table_->SetColumnVisibility(IDS_TASK_MANAGER_GDI_HANDLES_COLUMN, false);
   tab_table_->SetColumnVisibility(IDS_TASK_MANAGER_USER_HANDLES_COLUMN, false);
+  tab_table_->SetColumnVisibility(IDS_TASK_MANAGER_IDLE_WAKEUPS_COLUMN, false);
 
   UpdateStatsCounters();
   tab_table_->SetObserver(this);
   tab_table_->set_context_menu_controller(this);
   set_context_menu_controller(this);
   kill_button_ = new views::LabelButton(this,
       l10n_util::GetStringUTF16(IDS_TASK_MANAGER_KILL));
   kill_button_->SetStyle(views::Button::STYLE_BUTTON);
   about_memory_link_ = new views::Link(
       l10n_util::GetStringUTF16(IDS_TASK_MANAGER_ABOUT_MEMORY_LINK));
@@ skipping 275 matching lines @@
 }  // namespace
 
 namespace chrome {
 
 // Declared in browser_dialogs.h so others don't need to depend on our header.
 void ShowTaskManager(Browser* browser) {
   TaskManagerView::Show(browser);
 }
 
 }  // namespace chrome