Remove some unnecessary #include directives

src/ondemand/ODComputeSummaryTask.h

@@ -22,6 +22,7 @@ updating the ODPCMAliasBlockFile and the GUI of the newly available data.
 #include <vector>
 #include "ODTask.h"
 #include "ODTaskThread.h"
+#include "../Internat.h"
 class ODPCMAliasBlockFile;
 class WaveTrack;
 

src/ondemand/ODDecodeFlacTask.h

@@ -29,6 +29,7 @@ robust enough to allow all the user changes such as copy/paste, DELETE, and so o
 #define __AUDACITY_ODDecodeFLACTask__
 
 #include <vector>
+#include <wx/ffile.h> // data member
 #include "ODDecodeTask.h"
 #include "ODTaskThread.h"
 

src/ondemand/ODDecodeTask.h

@@ -32,6 +32,7 @@ robust enough to allow all the user changes such as copy/paste, DELETE, and so o
 #include <vector>
 #include "ODTask.h"
 #include "ODTaskThread.h"
+#include "../Internat.h"
 class ODDecodeBlockFile;
 class WaveTrack;
 class ODFileDecoder;

src/ondemand/ODTask.h

@@ -28,6 +28,7 @@ in a background thread.
 
 #include "../MemoryX.h"
 #include <vector>
+#include <wx/event.h> // to declare custom event type
 class AudacityProject;
 class Track;
 class WaveTrack;