BufferingSettings: simplify buffering control.

Now only 2 marks, initialMarkMs and resumPlaybackMarkMs, remain.
Test: pass cts tests
Bug: 36280094
Change-Id: I03c8e2a0db9f7e845f57e76f51874cd8715a48d4
diff --git a/media/libmediaplayerservice/nuplayer/GenericSource.h b/media/libmediaplayerservice/nuplayer/GenericSource.h
index 807b620..16c0224 100644
--- a/media/libmediaplayerservice/nuplayer/GenericSource.h
+++ b/media/libmediaplayerservice/nuplayer/GenericSource.h
@@ -54,7 +54,7 @@
 
     status_t setDataSource(const sp<DataSource>& dataSource);
 
-    virtual status_t getDefaultBufferingSettings(
+    virtual status_t getBufferingSettings(
             BufferingSettings* buffering /* nonnull */) override;
     virtual status_t setBufferingSettings(const BufferingSettings& buffering) override;