WebUI TaskManager: make it default on Chrome OS

chrome/browser/ui/webui/task_manager_handler.cc

 // Copyright (c) 2011 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/ui/webui/task_manager_handler.h"
 
 #include <algorithm>
 #include <functional>
 #include "base/string_number_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/task_manager/task_manager.h"
 #include "chrome/browser/ui/webui/web_ui_util.h"
+#include "chrome/common/chrome_notification_types.h"
+#include "content/common/notification_service.h"
+#include "content/common/notification_source.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 
 namespace {
 
 static Value* CreateColumnValue(const TaskManagerModel* tm,
                                 const std::string column_name,
                                 const int i) {
   if (column_name == "processId")
     return Value::CreateStringValue(tm->GetResourceProcessId(i));
   if (column_name == "processIdValue")
@@ skipping 213 matching lines @@
     if (group_start == group_end)
       return;
     else
       group_end--;
   }
 
   OnGroupAdded(group_start, group_end - group_start + 1);
 }
 
 void TaskManagerHandler::OnItemsRemoved(const int start, const int length) {
+  // Returns if this is called before updating |resource_to_group_table_|.
+  if (resource_to_group_table_.size() < static_cast<size_t>(start + length))
+    return;
+
   // Converts from an index of resources to an index of groups.
   int group_start = resource_to_group_table_[start];
   int group_end = resource_to_group_table_[start + length - 1];
 
   // First group to remove does not contain all the items in the group. Because
   // the first item to remove and the previous one are in same group.
   if (start != 0 && group_start == resource_to_group_table_[start - 1]) {
     OnGroupChanged(group_start, 1);
     if (group_start == group_end)
       return;
@@ skipping 68 matching lines @@
   model_->RemoveObserver(this);
 }
 
 void TaskManagerHandler::EnableTaskManager(const ListValue* indexes) {
   if (is_enabled_)
     return;
 
   is_enabled_ = true;
   model_->AddObserver(this);
   model_->StartUpdating();
+
+  NotificationService::current()->Notify(
+      chrome::NOTIFICATION_TASK_MANAGER_WINDOW_READY,
+      Source<TaskManagerModel>(model_),
+      NotificationService::NoDetails());
 }
 
 void TaskManagerHandler::OpenAboutMemory(const ListValue* indexes) {
   task_manager_->OpenAboutMemory();
 }
 
 // TaskManagerHandler, private: -----------------------------------------------
 
 void TaskManagerHandler::UpdateResourceGroupTable(int start, int length) {
   if (resource_to_group_table_.size() < static_cast<size_t>(start)) {
@@ skipping 41 matching lines @@
 }
 
 void TaskManagerHandler::OnGroupRemoved(const int group_start,
                                         const int group_length) {
   FundamentalValue start_value(group_start);
   FundamentalValue length_value(group_length);
   if (is_enabled_)
     web_ui_->CallJavascriptFunction("taskRemoved", start_value, length_value);
 }