preparation for allowing to use wxTimer in wxBase (heavily modified patch 1113088):

1. Changed wxTimer to use wxTimerImpl
2. Added Unix-specific generic timer implementation
3. Added wxAppTraits::CreateTimerImpl()


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45544 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/x11/app.cpp

@@ -22,7 +22,6 @@
     #include "wx/frame.h"
     #include "wx/icon.h"
     #include "wx/dialog.h"
-    #include "wx/timer.h"
     #include "wx/memory.h"
     #include "wx/gdicmn.h"
     #include "wx/module.h"
@@ -33,6 +32,7 @@
 
 #include "wx/univ/theme.h"
 #include "wx/univ/renderer.h"
+#include "wx/generic/private/timer.h"
 
 #if wxUSE_THREADS
     #include "wx/thread.h"
@@ -812,7 +812,7 @@ bool wxApp::Yield(bool onlyIfNeeded)
             wxTheApp->Dispatch();
 
 #if wxUSE_TIMER
-        wxTimer::NotifyTimers();
+        wxGenericTimerImpl::NotifyTimers();
 #endif
         ProcessIdle();