No real changes, just refactor wxEventLoop/wxApp::ProcessIdle().

Old code called wxApp::ProcessIdle() from wxEventLoopManualRun::Run() which called wxEventLoop::ProcessIdle() which called wxApp methods from it. In the new version wxEventLoopManualRun::Run() calls wxEventLoopManualRun::ProcessIdle() which calls wxApp::ProcessIdle() which calls other wxApp methods which seems to make more sense and also allows overriding ProcessIdle() in either wxEventLoopManual or wxApp-derived classes.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61441 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/evtloop.h

@@ -99,12 +99,13 @@ public:
     // idle handling
     // -------------
 
-    // make sure that idle events are sent again
+        // make sure that idle events are sent again
     virtual void WakeUpIdle();
 
         // this virtual function is called  when the application
-        // becomes idle and normally just sends wxIdleEvent to all interested
-        // parties
+        // becomes idle and by default it forwards to wxApp::ProcessIdle() and
+        // while it can be overridden in a custom event loop, you must call the
+        // base class version to ensure that idle events are still generated
         //
         // it should return true if more idle events are needed, false if not
     virtual bool ProcessIdle();