Revert 165244 - Create ash memory monitor

ash/system/monitor/tray_monitor.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 "ash/system/monitor/tray_monitor.h"
-
-#include "ash/system/tray/tray_item_view.h"
-#include "ash/system/tray/tray_views.h"
-#include "base/process_util.h"
-#include "base/stringprintf.h"
-#include "base/utf_string_conversions.h"
-#include "ui/base/text/bytes_formatting.h"
-#include "ui/views/controls/label.h"
-#include "ui/views/border.h"
-
-namespace {
-const int kRefreshTimeoutMs = 1000;
-}
-
-namespace ash {
-namespace internal {
-
-TrayMonitor::TrayMonitor() : label_(NULL) {
-  refresh_timer_.Start(FROM_HERE,
-      base::TimeDelta::FromMilliseconds(kRefreshTimeoutMs),
-      this, &TrayMonitor::RefreshStats);
-}
-
-TrayMonitor::~TrayMonitor() {
-  label_ = NULL;
-}
-
-views::View* TrayMonitor::CreateTrayView(user::LoginStatus status) {
-  TrayItemView* view = new TrayItemView;
-  view->CreateLabel();
-  label_ = view->label();
-  SetupLabelForTray(label_);
-  return view;
-}
-
-void TrayMonitor::DestroyTrayView() {
-  label_ = NULL;
-}
-
-void TrayMonitor::RefreshStats() {
-  base::SystemMemoryInfoKB mem_info;
-  base::GetSystemMemoryInfo(&mem_info);
-  std::string output;
-  string16 free_bytes =
-      ui::FormatBytes(static_cast<int64>(mem_info.free) * 1024);
-  output = StringPrintf("%s free", UTF16ToUTF8(free_bytes).c_str());
-  if (mem_info.gem_objects != -1 && mem_info.gem_size != -1) {
-    string16 gem_size = ui::FormatBytes(mem_info.gem_size);
-    output += StringPrintf(", %d gobjects alloced (%s)",
-                           mem_info.gem_objects,
-                           UTF16ToUTF8(gem_size).c_str());
-  }
-  label_->SetText(UTF8ToUTF16(output));
-}
-
-}  // namespace internal
-}  // namespace ash