Make DeviceSensorService implement MainLoop::DestructionObserver

content/browser/browser_main_loop.cc

Index: content/browser/browser_main_loop.cc
diff --git a/content/browser/browser_main_loop.cc b/content/browser/browser_main_loop.cc
index 211afb42d2b7de4b686664707ac02de8c7c74b34..746f1ce696fd414aa33da4e1b11327304aaf9ad6 100644
--- a/content/browser/browser_main_loop.cc
+++ b/content/browser/browser_main_loop.cc
@@ -92,7 +92,6 @@
 #include "content/public/common/result_codes.h"
 #include "device/battery/battery_status_service.h"
 #include "device/gamepad/gamepad_service.h"
-#include "device/sensors/device_sensor_service.h"
 #include "media/audio/audio_system_impl.h"
 #include "media/base/media.h"
 #include "media/base/user_input_monitor.h"
@@ -1368,10 +1367,6 @@ void BrowserMainLoop::ShutdownThreadsAndCleanUp() {
     TRACE_EVENT0("shutdown", "BrowserMainLoop::Subsystem:GamepadService");
     device::GamepadService::GetInstance()->Terminate();
   }
-  {
-    TRACE_EVENT0("shutdown", "BrowserMainLoop::Subsystem:SensorService");
-    device::DeviceSensorService::GetInstance()->Shutdown();
-  }
 #if !defined(OS_ANDROID)
   {
     TRACE_EVENT0("shutdown", "BrowserMainLoop::Subsystem:BatteryStatusService");