Add TaskManagerEndProcessEnabled policy

chrome/browser/task_manager/task_manager.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/bind.h"
 #include "base/i18n/number_formatting.h"
 #include "base/i18n/rtl.h"
 #include "base/location.h"
@@ skipping 1495 matching lines @@
   return resources_[index];
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // TaskManager class
 ////////////////////////////////////////////////////////////////////////////////
 // static
 void TaskManager::RegisterPrefs(PrefRegistrySimple* registry) {
   registry->RegisterDictionaryPref(prefs::kTaskManagerWindowPlacement);
   registry->RegisterDictionaryPref(prefs::kTaskManagerColumnVisibility);
+  registry->RegisterBooleanPref(prefs::kTaskManagerEndProcessEnabled, true);
+}
+
+// static
+bool TaskManager::IsEndProcessEnabled() {
+  if (g_browser_process->local_state()) {
+    return g_browser_process->local_state()->GetBoolean(
+        prefs::kTaskManagerEndProcessEnabled);
+  }
+  return true;
 }
 
 bool TaskManager::IsBrowserProcess(int index) const {
   // If some of the selection is out of bounds, ignore. This may happen when
   // killing a process that manages several pages.
   return index < model_->ResourceCount() &&
       model_->GetProcess(index) == base::GetCurrentProcessHandle();
 }
 
 void TaskManager::KillProcess(int index) {
@@ skipping 36 matching lines @@
 TaskManager* TaskManager::GetInstance() {
   return base::Singleton<TaskManager>::get();
 }
 
 TaskManager::TaskManager()
     : model_(new TaskManagerModel(this)) {
 }
 
 TaskManager::~TaskManager() {
 }