Move ChromeOS bubble setup code to window.cc.

chrome/browser/ui/views/avatar_menu_button.cc

Index: chrome/browser/ui/views/avatar_menu_button.cc
diff --git a/chrome/browser/ui/views/avatar_menu_button.cc b/chrome/browser/ui/views/avatar_menu_button.cc
index cbbae44d0e584f536edd595e331681f7298013d9..affbd68e87bb1e201e1fe78b8a0020da13d541af 100644
--- a/chrome/browser/ui/views/avatar_menu_button.cc
+++ b/chrome/browser/ui/views/avatar_menu_button.cc
@@ -8,6 +8,7 @@
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/views/avatar_menu_bubble_view.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
+#include "chrome/browser/ui/views/window.h"
 #include "ui/gfx/canvas_skia.h"
 #include "ui/views/widget/widget.h"
 
@@ -153,7 +154,7 @@ void AvatarMenuButton::ShowAvatarBubble() {
 
   AvatarMenuBubbleView* bubble = new AvatarMenuBubbleView(this,
       views::BubbleBorder::TOP_LEFT, bounds, browser_);
-  views::BubbleDelegateView::CreateBubble(bubble);
+  browser::CreateViewsBubble(bubble);
   bubble->Show();
 
   ProfileMetrics::LogProfileOpenMethod(ProfileMetrics::ICON_AVATAR_BUBBLE);