Revert 66784 - Converts usage of SetProp/GetProp to a map. Even after making ...

views/focus/focus_util_win.h

Index: views/focus/focus_util_win.h
===================================================================
--- views/focus/focus_util_win.h	(revision 66785)
+++ views/focus/focus_util_win.h	(working copy)
@@ -9,16 +9,18 @@
 #include <windows.h>
 
 namespace app {
-class ViewProp;
+namespace win {
+class ScopedProp;
 }
+}
 
 namespace views {
 
 // Marks the passed |hwnd| as supporting mouse-wheel message rerouting.
 // We reroute the mouse wheel messages to such HWND when they are under the
-// mouse pointer (but are not the active window). Callers own the returned
-// object.
-app::ViewProp* SetWindowSupportsRerouteMouseWheel(HWND hwnd);
+// mouse pointer (but are not the active window). Callers must delete the
+// returned object before the window is destroyed (see ScopedProp for details).
+app::win::ScopedProp* SetWindowSupportsRerouteMouseWheel(HWND hwnd);
 
 // Forwards mouse wheel messages to the window under it.
 // Windows sends mouse wheel messages to the currently active window.