25 files changed, 70 insertions, 97 deletions

diff --git a/app/app.gyp b/app/app.gyp
index de566ee..09231358 100644
--- a/app/app.gyp
+++ b/app/app.gyp
@@ -47,7 +47,6 @@
         '../ui/base/dragdrop/os_exchange_data_win_unittest.cc',
         '../ui/base/models/tree_node_iterator_unittest.cc',
         '../ui/base/models/tree_node_model_unittest.cc',
-        '../ui/base/system_monitor/system_monitor_unittest.cc',
         'data_pack_unittest.cc',
         'l10n_util_mac_unittest.mm',
         'l10n_util_unittest.cc',
@@ -55,6 +54,7 @@
         'sql/connection_unittest.cc',
         'sql/statement_unittest.cc',
         'sql/transaction_unittest.cc',
+        'system_monitor_unittest.cc',
         'test_suite.h',
         'test/data/resource.h',
         'text_elider_unittest.cc',
diff --git a/app/app_base.gypi b/app/app_base.gypi
index c35847f..126d04d 100644
--- a/app/app_base.gypi
+++ b/app/app_base.gypi
@@ -22,11 +22,14 @@
             'app_paths.cc',
             'app_switches.h',
             'app_switches.cc',
-            '../ui/base/system_monitor/system_monitor.cc',
-            '../ui/base/system_monitor/system_monitor.h',
-            '../ui/base/system_monitor/system_monitor_mac.mm',
-            '../ui/base/system_monitor/system_monitor_posix.cc',
-            '../ui/base/system_monitor/system_monitor_win.cc',
+            'hi_res_timer_manager_posix.cc',
+            'hi_res_timer_manager_win.cc',
+            'hi_res_timer_manager.h',
+            'system_monitor.cc',
+            'system_monitor.h',
+            'system_monitor_mac.mm',
+            'system_monitor_posix.cc',
+            'system_monitor_win.cc',
         ],
         'conditions': [
           ['OS!="linux" and OS!="freebsd" and OS!="openbsd"', {
diff --git a/chrome/common/hi_res_timer_manager.h b/app/hi_res_timer_manager.h
index 5610a61..7f3b87b 100644
--- a/chrome/common/hi_res_timer_manager.h
+++ b/app/hi_res_timer_manager.h
@@ -1,21 +1,21 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2009 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.
 
-#ifndef CHROME_COMMON_HI_RES_TIMER_MANAGER_H_
-#define CHROME_COMMON_HI_RES_TIMER_MANAGER_H_
+#ifndef APP_HI_RES_TIMER_MANAGER_H_
+#define APP_HI_RES_TIMER_MANAGER_H_
 #pragma once
 
-#include "ui/base/system_monitor/system_monitor.h"
+#include "app/system_monitor.h"
 
 // Ensures that the Windows high resolution timer is only used
 // when not running on battery power.
-class HighResolutionTimerManager : public ui::SystemMonitor::PowerObserver {
+class HighResolutionTimerManager : public SystemMonitor::PowerObserver {
  public:
   HighResolutionTimerManager();
   virtual ~HighResolutionTimerManager();
 
-  // ui::SystemMonitor::PowerObserver:
+  // SystemMonitor::PowerObserver:
   virtual void OnPowerStateChange(bool on_battery_power);
 
  private:
@@ -27,4 +27,4 @@ class HighResolutionTimerManager : public ui::SystemMonitor::PowerObserver {
   DISALLOW_COPY_AND_ASSIGN(HighResolutionTimerManager);
 };
 
-#endif  // CHROME_COMMON_HI_RES_TIMER_MANAGER_H_
\ No newline at end of file
+#endif  // APP_HI_RES_TIMER_MANAGER_H_
diff --git a/chrome/common/hi_res_timer_manager_posix.cc b/app/hi_res_timer_manager_posix.cc
index fc9c1ba..1398449 100644
--- a/chrome/common/hi_res_timer_manager_posix.cc
+++ b/app/hi_res_timer_manager_posix.cc
@@ -1,8 +1,8 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2009 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/common/hi_res_timer_manager.h"
+#include "app/hi_res_timer_manager.h"
 
 // On POSIX we don't need to do anything special with the system timer.
 
diff --git a/chrome/common/hi_res_timer_manager_win.cc b/app/hi_res_timer_manager_win.cc
index c165222..6fbffca 100644
--- a/chrome/common/hi_res_timer_manager_win.cc
+++ b/app/hi_res_timer_manager_win.cc
@@ -1,20 +1,20 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2009 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/common/hi_res_timer_manager.h"
+#include "app/hi_res_timer_manager.h"
 
 #include "base/time.h"
 
 HighResolutionTimerManager::HighResolutionTimerManager()
     : hi_res_clock_used_(false) {
-  ui::SystemMonitor* system_monitor = ui::SystemMonitor::Get();
+  SystemMonitor* system_monitor = SystemMonitor::Get();
   system_monitor->AddObserver(this);
   UseHiResClock(!system_monitor->BatteryPower());
 }
 
 HighResolutionTimerManager::~HighResolutionTimerManager() {
-  ui::SystemMonitor::Get()->RemoveObserver(this);
+  SystemMonitor::Get()->RemoveObserver(this);
   UseHiResClock(false);
 }
 
diff --git a/ui/base/system_monitor/system_monitor.cc b/app/system_monitor.cc
index 80110cb..a30dac1 100644
--- a/ui/base/system_monitor/system_monitor.cc
+++ b/app/system_monitor.cc
@@ -1,15 +1,13 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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 "ui/base/system_monitor/system_monitor.h"
+#include "app/system_monitor.h"
 
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/time.h"
 
-namespace ui {
-
 static SystemMonitor* g_system_monitor = NULL;
 
 #if defined(ENABLE_BATTERY_MONITORING)
@@ -104,5 +102,3 @@ void SystemMonitor::NotifyResume() {
 void SystemMonitor::BatteryCheck() {
   ProcessPowerMessage(SystemMonitor::POWER_STATE_EVENT);
 }
-
-}  // namespace ui
diff --git a/ui/base/system_monitor/system_monitor.h b/app/system_monitor.h
index 392c3b0..39711a7 100644
--- a/ui/base/system_monitor/system_monitor.h
+++ b/app/system_monitor.h
@@ -1,9 +1,9 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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.
 
-#ifndef UI_BASE_SYSTEM_MONITOR_SYSTEM_MONITOR_H_
-#define UI_BASE_SYSTEM_MONITOR_SYSTEM_MONITOR_H_
+#ifndef APP_SYSTEM_MONITOR_H_
+#define APP_SYSTEM_MONITOR_H_
 #pragma once
 
 #include "build/build_config.h"
@@ -21,8 +21,6 @@
 #include "base/timer.h"
 #endif  // defined(ENABLE_BATTERY_MONITORING)
 
-namespace ui {
-
 #if defined(OS_MACOSX)
 #ifdef __OBJC__
 @class SystemMonitorBridge;
@@ -138,6 +136,4 @@ class SystemMonitor {
   DISALLOW_COPY_AND_ASSIGN(SystemMonitor);
 };
 
-}  // namespace ui
-
-#endif  // UI_BASE_SYSTEM_MONITOR_SYSTEM_MONITOR_H_
+#endif  // APP_SYSTEM_MONITOR_H_
diff --git a/ui/base/system_monitor/system_monitor_mac.mm b/app/system_monitor_mac.mm
index 5fba6c3..d40970b 100644
--- a/ui/base/system_monitor/system_monitor_mac.mm
+++ b/app/system_monitor_mac.mm
@@ -1,13 +1,11 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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 "ui/base/system_monitor/system_monitor.h"
+#include "app/system_monitor.h"
 
 #import <AppKit/AppKit.h>
 
-namespace ui {
-
 @interface SystemMonitorBridge : NSObject {
  @private
   SystemMonitor* systemMonitor_;  // weak
@@ -67,5 +65,3 @@ void SystemMonitor::PlatformInit() {
 void SystemMonitor::PlatformDestroy() {
   [system_monitor_bridge_ release];
 }
-
-}  // namespace ui
diff --git a/ui/base/system_monitor/system_monitor_posix.cc b/app/system_monitor_posix.cc
index ddd0fe0..5ac7a12 100644
--- a/ui/base/system_monitor/system_monitor_posix.cc
+++ b/app/system_monitor_posix.cc
@@ -1,14 +1,10 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2009 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 "ui/base/system_monitor/system_monitor.h"
-
-namespace ui {
+#include "app/system_monitor.h"
 
 bool SystemMonitor::IsBatteryPower() {
   NOTIMPLEMENTED();
   return false;
 }
-
-}  // namespace ui
diff --git a/ui/base/system_monitor/system_monitor_unittest.cc b/app/system_monitor_unittest.cc
index 28b2cbf..5b107aa 100644
--- a/ui/base/system_monitor/system_monitor_unittest.cc
+++ b/app/system_monitor_unittest.cc
@@ -1,12 +1,10 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2009 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 "ui/base/system_monitor/system_monitor.h"
+#include "app/system_monitor.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-namespace ui {
-
 class PowerTest : public SystemMonitor::PowerObserver {
  public:
   PowerTest()
@@ -87,5 +85,3 @@ TEST(SystemMonitor, PowerNotifications) {
   loop.RunAllPending();
   EXPECT_EQ(test[0].resumes(), 1);
 }
-
-}  // namespace ui
diff --git a/ui/base/system_monitor/system_monitor_win.cc b/app/system_monitor_win.cc
index df8aabf..c9347dc 100644
--- a/ui/base/system_monitor/system_monitor_win.cc
+++ b/app/system_monitor_win.cc
@@ -1,10 +1,8 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2009 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 "ui/base/system_monitor/system_monitor.h"
-
-namespace ui {
+#include "app/system_monitor.h"
 
 void SystemMonitor::ProcessWmPowerBroadcastMessage(int event_id) {
   PowerEvent power_event;
@@ -46,5 +44,3 @@ bool SystemMonitor::IsBatteryPower() {
   }
   return (status.ACLineStatus == 0);
 }
-
-}  // namespace ui
diff --git a/chrome/browser/browser_main.cc b/chrome/browser/browser_main.cc
index 64f0dd3..961f783 100644
--- a/chrome/browser/browser_main.cc
+++ b/chrome/browser/browser_main.cc
@@ -8,8 +8,10 @@
 #include <string>
 #include <vector>
 
+#include "app/hi_res_timer_manager.h"
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
+#include "app/system_monitor.h"
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ -76,7 +78,6 @@
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/env_vars.h"
-#include "chrome/common/hi_res_timer_manager.h"
 #include "chrome/common/json_pref_store.h"
 #include "chrome/common/jstemplate_builder.h"
 #include "chrome/common/logging_chrome.h"
@@ -100,7 +101,6 @@
 #include "net/spdy/spdy_session_pool.h"
 #include "net/url_request/url_request.h"
 #include "net/url_request/url_request_throttler_manager.h"
-#include "ui/base/system_monitor/system_monitor.h"
 
 #if defined(USE_LINUX_BREAKPAD)
 #include "base/linux_util.h"
@@ -469,7 +469,7 @@ void BrowserMainParts::MainMessageLoopStart() {
   main_message_loop_.reset(new MessageLoop(MessageLoop::TYPE_UI));
 
   // TODO(viettrungluu): should these really go before setting the thread name?
-  system_monitor_.reset(new ui::SystemMonitor);
+  system_monitor_.reset(new SystemMonitor);
   hi_res_timer_manager_.reset(new HighResolutionTimerManager);
   network_change_notifier_.reset(net::NetworkChangeNotifier::Create());
 
diff --git a/chrome/browser/browser_main.h b/chrome/browser/browser_main.h
index 7fd7142..9154a4c 100644
--- a/chrome/browser/browser_main.h
+++ b/chrome/browser/browser_main.h
@@ -17,15 +17,12 @@ class HighResolutionTimerManager;
 struct MainFunctionParams;
 class MessageLoop;
 class MetricsService;
+class SystemMonitor;
 
 namespace net {
 class NetworkChangeNotifier;
 }
 
-namespace ui {
-class SystemMonitor;
-}
-
 // BrowserMainParts:
 // This class contains different "stages" to be executed in |BrowserMain()|,
 // mostly initialization. This is made into a class rather than just functions
@@ -147,7 +144,7 @@ class BrowserMainParts {
 
   // Members initialized in |MainMessageLoopStart()| ---------------------------
   scoped_ptr<MessageLoop> main_message_loop_;
-  scoped_ptr<ui::SystemMonitor> system_monitor_;
+  scoped_ptr<SystemMonitor> system_monitor_;
   scoped_ptr<HighResolutionTimerManager> hi_res_timer_manager_;
   scoped_ptr<net::NetworkChangeNotifier> network_change_notifier_;
   scoped_ptr<BrowserThread> main_thread_;
diff --git a/chrome/browser/profiles/profile_manager.cc b/chrome/browser/profiles/profile_manager.cc
index 2bae317..87a03ea 100644
--- a/chrome/browser/profiles/profile_manager.cc
+++ b/chrome/browser/profiles/profile_manager.cc
@@ -51,7 +51,7 @@ Profile* ProfileManager::GetDefaultProfile() {
 }
 
 ProfileManager::ProfileManager() : logged_in_(false) {
-  ui::SystemMonitor::Get()->AddObserver(this);
+  SystemMonitor::Get()->AddObserver(this);
 #if defined(OS_CHROMEOS)
   registrar_.Add(
       this,
@@ -61,7 +61,7 @@ ProfileManager::ProfileManager() : logged_in_(false) {
 }
 
 ProfileManager::~ProfileManager() {
-  ui::SystemMonitor* system_monitor = ui::SystemMonitor::Get();
+  SystemMonitor* system_monitor = SystemMonitor::Get();
   if (system_monitor)
     system_monitor->RemoveObserver(this);
 
diff --git a/chrome/browser/profiles/profile_manager.h b/chrome/browser/profiles/profile_manager.h
index d2f9281..1d6483d 100644
--- a/chrome/browser/profiles/profile_manager.h
+++ b/chrome/browser/profiles/profile_manager.h
@@ -10,18 +10,18 @@
 
 #include <vector>
 
+#include "app/system_monitor.h"
 #include "base/basictypes.h"
 #include "base/message_loop.h"
 #include "base/threading/non_thread_safe.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/notification_observer.h"
 #include "chrome/common/notification_registrar.h"
-#include "ui/base/system_monitor/system_monitor.h"
 
 class FilePath;
 
 class ProfileManager : public base::NonThreadSafe,
-                       public ui::SystemMonitor::PowerObserver,
+                       public SystemMonitor::PowerObserver,
                        public NotificationObserver {
  public:
   ProfileManager();
diff --git a/chrome/browser/profiles/profile_manager_unittest.cc b/chrome/browser/profiles/profile_manager_unittest.cc
index 6f3ef1a..42f6d91 100644
--- a/chrome/browser/profiles/profile_manager_unittest.cc
+++ b/chrome/browser/profiles/profile_manager_unittest.cc
@@ -4,6 +4,7 @@
 
 #include <string>
 
+#include "app/system_monitor.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/message_loop.h"
@@ -17,7 +18,6 @@
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/notification_service.h"
 #include "testing/gtest/include/gtest/gtest.h"
-#include "ui/base/system_monitor/system_monitor.h"
 
 class ProfileManagerTest : public testing::Test {
  protected:
@@ -75,7 +75,7 @@ TEST_F(ProfileManagerTest, CreateProfile) {
 
 TEST_F(ProfileManagerTest, DefaultProfileDir) {
   CommandLine *cl = CommandLine::ForCurrentProcess();
-  ui::SystemMonitor dummy;
+  SystemMonitor dummy;
   ProfileManager profile_manager;
   std::string profile_dir("my_user");
 
@@ -91,7 +91,7 @@ TEST_F(ProfileManagerTest, DefaultProfileDir) {
 // This functionality only exists on Chrome OS.
 TEST_F(ProfileManagerTest, LoggedInProfileDir) {
   CommandLine *cl = CommandLine::ForCurrentProcess();
-  ui::SystemMonitor dummy;
+  SystemMonitor dummy;
   ProfileManager profile_manager;
   std::string profile_dir("my_user");
 
diff --git a/chrome/browser/tabs/tab_strip_model_unittest.cc b/chrome/browser/tabs/tab_strip_model_unittest.cc
index 21ed2a5..a21ef74 100644
--- a/chrome/browser/tabs/tab_strip_model_unittest.cc
+++ b/chrome/browser/tabs/tab_strip_model_unittest.cc
@@ -5,6 +5,7 @@
 #include <map>
 #include <string>
 
+#include "app/system_monitor.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
@@ -35,7 +36,6 @@
 #include "chrome/common/url_constants.h"
 #include "chrome/test/testing_profile.h"
 #include "testing/gtest/include/gtest/gtest.h"
-#include "ui/base/system_monitor/system_monitor.h"
 
 using testing::_;
 
@@ -230,8 +230,8 @@ class TabStripModelTest : public RenderViewHostTestHarness {
   std::wstring profile_path_;
   std::map<TabContents*, int> foo_;
 
-  // ProfileManager requires a ui::SystemMonitor.
-  ui::SystemMonitor system_monitor;
+  // ProfileManager requires a SystemMonitor.
+  SystemMonitor system_monitor;
 
   ProfileManager pm_;
 };
diff --git a/chrome/chrome_common.gypi b/chrome/chrome_common.gypi
index 869653f..a7cd981 100644
--- a/chrome/chrome_common.gypi
+++ b/chrome/chrome_common.gypi
@@ -93,9 +93,6 @@
           'common/guid.h',
           'common/guid_posix.cc',
           'common/guid_win.cc',
-          'common/hi_res_timer_manager_posix.cc',
-          'common/hi_res_timer_manager_win.cc',
-          'common/hi_res_timer_manager.h',
           'common/indexed_db_key.cc',
           'common/indexed_db_key.h',
           'common/indexed_db_messages.cc',
diff --git a/chrome/nacl/nacl_main.cc b/chrome/nacl/nacl_main.cc
index cb7fe26..0e63273 100644
--- a/chrome/nacl/nacl_main.cc
+++ b/chrome/nacl/nacl_main.cc
@@ -8,6 +8,8 @@
 #include <windows.h>
 #endif
 
+#include "app/hi_res_timer_manager.h"
+#include "app/system_monitor.h"
 #include "base/command_line.h"
 #include "base/message_loop.h"
 #include "base/string_util.h"
@@ -19,14 +21,12 @@
 #include "chrome/common/child_process.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
-#include "chrome/common/hi_res_timer_manager.h"
 #include "chrome/common/logging_chrome.h"
 #include "chrome/common/main_function_params.h"
 #include "chrome/common/result_codes.h"
 #include "chrome/common/sandbox_policy.h"
 #include "chrome/nacl/nacl_main_platform_delegate.h"
 #include "chrome/nacl/nacl_thread.h"
-#include "ui/base/system_monitor/system_monitor.h"
 
 #if defined(OS_WIN)
 #include "chrome/nacl/broker_thread.h"
@@ -43,7 +43,7 @@ int NaClBrokerMain(const MainFunctionParams& parameters) {
   MessageLoopForIO main_message_loop;
   base::PlatformThread::SetName("CrNaClBrokerMain");
 
-  ui::SystemMonitor system_monitor;
+  SystemMonitor system_monitor;
   HighResolutionTimerManager hi_res_timer_manager;
 
   const CommandLine& parsed_command_line = parameters.command_line_;
@@ -111,7 +111,7 @@ int NaClMain(const MainFunctionParams& parameters) {
   MessageLoopForIO main_message_loop;
   base::PlatformThread::SetName("CrNaClMain");
 
-  ui::SystemMonitor system_monitor;
+  SystemMonitor system_monitor;
   HighResolutionTimerManager hi_res_timer_manager;
 
 #if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_LINUX)
diff --git a/chrome/plugin/plugin_main.cc b/chrome/plugin/plugin_main.cc
index 8417e92..dee171c 100644
--- a/chrome/plugin/plugin_main.cc
+++ b/chrome/plugin/plugin_main.cc
@@ -9,6 +9,8 @@
 #include <windows.h>
 #endif
 
+#include "app/hi_res_timer_manager.h"
+#include "app/system_monitor.h"
 #include "base/command_line.h"
 #include "base/message_loop.h"
 #include "base/string_util.h"
@@ -18,11 +20,9 @@
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/default_plugin.h"
 #include "chrome/common/gpu_plugin.h"
-#include "chrome/common/hi_res_timer_manager.h"
 #include "chrome/common/logging_chrome.h"
 #include "chrome/common/main_function_params.h"
 #include "chrome/plugin/plugin_thread.h"
-#include "ui/base/system_monitor/system_monitor.h"
 
 #if defined(OS_WIN)
 #include "chrome/test/injection_test_dll.h"
@@ -94,7 +94,7 @@ int PluginMain(const MainFunctionParams& parameters) {
   MessageLoop main_message_loop(MessageLoop::TYPE_UI);
   base::PlatformThread::SetName("CrPluginMain");
 
-  ui::SystemMonitor system_monitor;
+  SystemMonitor system_monitor;
   HighResolutionTimerManager high_resolution_timer_manager;
 
   const CommandLine& parsed_command_line = parameters.command_line_;
diff --git a/chrome/renderer/renderer_main.cc b/chrome/renderer/renderer_main.cc
index 8a08d4c..a380902 100644
--- a/chrome/renderer/renderer_main.cc
+++ b/chrome/renderer/renderer_main.cc
@@ -7,6 +7,8 @@
 #include <unistd.h>
 #endif  // OS_MACOSX
 
+#include "app/hi_res_timer_manager.h"
+#include "app/system_monitor.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/mac/scoped_nsautorelease_pool.h"
@@ -21,7 +23,6 @@
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_counters.h"
 #include "chrome/common/chrome_switches.h"
-#include "chrome/common/hi_res_timer_manager.h"
 #include "chrome/common/logging_chrome.h"
 #include "chrome/common/main_function_params.h"
 #include "chrome/common/net/net_resource_provider.h"
@@ -31,7 +32,6 @@
 #include "chrome/renderer/render_thread.h"
 #include "grit/generated_resources.h"
 #include "net/base/net_module.h"
-#include "ui/base/system_monitor/system_monitor.h"
 
 #if defined(OS_MACOSX)
 #include "base/eintr_wrapper.h"
@@ -240,7 +240,7 @@ int RendererMain(const MainFunctionParams& parameters) {
 
   base::PlatformThread::SetName("CrRendererMain");
 
-  ui::SystemMonitor system_monitor;
+  SystemMonitor system_monitor;
   HighResolutionTimerManager hi_res_timer_manager;
 
   platform.PlatformInitialize();
diff --git a/chrome/utility/utility_main.cc b/chrome/utility/utility_main.cc
index d0159dd..74360c8 100644
--- a/chrome/utility/utility_main.cc
+++ b/chrome/utility/utility_main.cc
@@ -3,6 +3,8 @@
 // found in the LICENSE file.
 
 #include "app/app_switches.h"
+#include "app/hi_res_timer_manager.h"
+#include "app/system_monitor.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/message_loop.h"
@@ -13,11 +15,9 @@
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/extensions/extension_l10n_util.h"
-#include "chrome/common/hi_res_timer_manager.h"
 #include "chrome/common/logging_chrome.h"
 #include "chrome/common/main_function_params.h"
 #include "chrome/utility/utility_thread.h"
-#include "ui/base/system_monitor/system_monitor.h"
 
 #if defined(OS_WIN)
 #include "chrome/common/chrome_switches.h"
@@ -31,7 +31,7 @@ int UtilityMain(const MainFunctionParams& parameters) {
   MessageLoop main_message_loop;
   base::PlatformThread::SetName("CrUtilityMain");
 
-  ui::SystemMonitor system_monitor;
+  SystemMonitor system_monitor;
   HighResolutionTimerManager hi_res_timer_manager;
 
   ChildProcess utility_process;
diff --git a/chrome/worker/worker_main.cc b/chrome/worker/worker_main.cc
index c39a4b8..0ba0e87 100644
--- a/chrome/worker/worker_main.cc
+++ b/chrome/worker/worker_main.cc
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "app/hi_res_timer_manager.h"
+#include "app/system_monitor.h"
 #include "base/command_line.h"
 #include "base/message_loop.h"
 #include "base/string_util.h"
@@ -9,11 +11,9 @@
 #include "chrome/common/child_process.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
-#include "chrome/common/hi_res_timer_manager.h"
 #include "chrome/common/logging_chrome.h"
 #include "chrome/common/main_function_params.h"
 #include "chrome/worker/worker_thread.h"
-#include "ui/base/system_monitor/system_monitor.h"
 
 #if defined(OS_WIN)
 #include "chrome/common/sandbox_init_wrapper.h"
@@ -26,7 +26,7 @@ int WorkerMain(const MainFunctionParams& parameters) {
   MessageLoop main_message_loop;
   base::PlatformThread::SetName("CrWorkerMain");
 
-  ui::SystemMonitor system_monitor;
+  SystemMonitor system_monitor;
   HighResolutionTimerManager hi_res_timer_manager;
 
   ChildProcess worker_process;
diff --git a/chrome_frame/test/net/fake_external_tab.cc b/chrome_frame/test/net/fake_external_tab.cc
index c48af62..118496c 100644
--- a/chrome_frame/test/net/fake_external_tab.cc
+++ b/chrome_frame/test/net/fake_external_tab.cc
@@ -183,7 +183,7 @@ FakeExternalTab::~FakeExternalTab() {
 
 void FakeExternalTab::Initialize() {
   DCHECK(g_browser_process == NULL);
-  ui::SystemMonitor system_monitor;
+  SystemMonitor system_monitor;
 
   // The gears plugin causes the PluginRequestInterceptor to kick in and it
   // will cause problems when it tries to intercept URL requests.
diff --git a/views/widget/widget_win.cc b/views/widget/widget_win.cc
index 587d871..8fab0ae 100644
--- a/views/widget/widget_win.cc
+++ b/views/widget/widget_win.cc
@@ -5,6 +5,7 @@
 #include "views/widget/widget_win.h"
 
 #include "app/l10n_util_win.h"
+#include "app/system_monitor.h"
 #include "app/view_prop.h"
 #include "app/win/hwnd_util.h"
 #include "app/win/win_util.h"
@@ -13,7 +14,6 @@
 #include "gfx/native_theme_win.h"
 #include "gfx/path.h"
 #include "ui/base/keycodes/keyboard_code_conversion_win.h"
-#include "ui/base/system_monitor/system_monitor.h"
 #include "views/accessibility/view_accessibility.h"
 #include "views/controls/native_control_win.h"
 #include "views/focus/focus_util_win.h"
@@ -867,7 +867,7 @@ void WidgetWin::OnPaint(HDC dc) {
 }
 
 LRESULT WidgetWin::OnPowerBroadcast(DWORD power_event, DWORD data) {
-  ui::SystemMonitor* monitor = ui::SystemMonitor::Get();
+  SystemMonitor* monitor = SystemMonitor::Get();
   if (monitor)
     monitor->ProcessWmPowerBroadcastMessage(power_event);
   SetMsgHandled(FALSE);