Regularize ownerships and lifecycle for storage monitor platform classes.

chrome/browser/chrome_browser_main_win.cc

Index: chrome/browser/chrome_browser_main_win.cc
diff --git a/chrome/browser/chrome_browser_main_win.cc b/chrome/browser/chrome_browser_main_win.cc
index cbe174ad272ad94899e05a57876614ab4e341b12..ea30847e5ba94be17b57f7e594abf9fa45506850 100644
--- a/chrome/browser/chrome_browser_main_win.cc
+++ b/chrome/browser/chrome_browser_main_win.cc
@@ -199,8 +199,6 @@ void ChromeBrowserMainPartsWin::PreMainMessageLoopStart() {
     // Make sure that we know how to handle exceptions from the message loop.
     InitializeWindowProcExceptions();
   }
-  removable_device_notifications_window_.reset(
-      chrome::RemovableDeviceNotificationsWindowWin::Create());
 }
 
 void ChromeBrowserMainPartsWin::PostMainMessageLoopStart() {
@@ -218,10 +216,17 @@ void ChromeBrowserMainPartsWin::PostMainMessageLoopStart() {
   }
 }
 
-void ChromeBrowserMainPartsWin::PreMainMessageLoopRun() {
-  ChromeBrowserMainParts::PreMainMessageLoopRun();
+void ChromeBrowserMainPartsWin::PreProfileInit() {
+  removable_device_notifications_window_.reset(
+      chrome::RemovableDeviceNotificationsWindowWin::Create());
 
+  ChromeBrowserMainParts::PreProfileInit();
+}
+
+void ChromeBrowserMainPartsWin::PostProfileInit() {
   removable_device_notifications_window_->Init();
+
+  ChromeBrowserMainParts::PostProfileInit();
 }
 
 void ChromeBrowserMainPartsWin::ShowMissingLocaleMessageBox() {