NuPlayerRenderer: Update mAnchorMaxMediaUs when anchor time is changed to fix pause-seek-getCurrentPosition.

NuPlayerDecoder: Notify resume is done when EOS is reached.

GenericSource: add code to signal pre-roll for seek so that it will seek to the requested position,
not only I-frame. This code is disabled temporarily till we have a full solution to handle both
single seek and continous seek gracefully.

Bug: 18625723
Change-Id: I99a54d4d549e0d805e3abcc227fbf96c16405af0
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
index 6ad28b5..2abd9d6 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
@@ -476,6 +476,7 @@
     buffer->meta()->setInt64("timeUs", timeUs);
     if (flags & MediaCodec::BUFFER_FLAG_EOS) {
         buffer->meta()->setInt32("eos", true);
+        notifyResumeCompleteIfNecessary();
     }
     // we do not expect CODECCONFIG or SYNCFRAME for decoder