Reclaim allocations on AACExtractor destructor

Bug: 142731632
Test: n
diff --git a/media/extractors/aac/AACExtractor.cpp b/media/extractors/aac/AACExtractor.cpp
index 5d00d94..8f60f6b 100644
--- a/media/extractors/aac/AACExtractor.cpp
+++ b/media/extractors/aac/AACExtractor.cpp
@@ -181,6 +181,8 @@
 }
 
 AACExtractor::~AACExtractor() {
+    mOffsetVector.clear();
+    delete mDataSource;
     if (mMeta != nullptr) {
         AMediaFormat_delete(mMeta);
     }