cros: CustomFrameViewAsh avatar icon from a window prop

ash/shell_delegate.h

Index: ash/shell_delegate.h
diff --git a/ash/shell_delegate.h b/ash/shell_delegate.h
index 3022a5863ed905d8fcf290773a31a2f9d492fda1..8aba55298845be1bba4d03e2ef305548b35633e2 100644
--- a/ash/shell_delegate.h
+++ b/ash/shell_delegate.h
@@ -40,7 +40,6 @@ namespace ash {
 class AccessibilityDelegate;
 class GPUSupport;
 class PaletteDelegate;
-class SessionStateDelegate;
 class Shelf;
 struct ShelfItem;
 class SystemTrayDelegate;
@@ -102,9 +101,6 @@ class ASH_EXPORT ShellDelegate {
   // Creates a wallpaper delegate. Shell takes ownership of the delegate.
   virtual std::unique_ptr<WallpaperDelegate> CreateWallpaperDelegate() = 0;
 
-  // Creates a session state delegate. Shell takes ownership of the delegate.
-  virtual SessionStateDelegate* CreateSessionStateDelegate() = 0;
-
   // Creates a accessibility delegate. Shell takes ownership of the delegate.
   virtual AccessibilityDelegate* CreateAccessibilityDelegate() = 0;