Trivial fix for memcheck error.

TBR=xians

Review URL: https://webrtc-codereview.appspot.com/763005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@2684 4adac7df-926f-26a2-2b94-8c16560cd09d

src/voice_engine/voe_audio_processing_unittest.cc

@@ -26,6 +26,7 @@ class VoEAudioProcessingTest : public ::testing::Test {
   }
 
   virtual ~VoEAudioProcessingTest() {
+    base_->Terminate();
     audioproc_->Release();
     base_->Release();
     VoiceEngine::Delete(voe_);