Use reference or pointer in tuner vts.

Bug: 188709323
Bug: 191825295
Test: VtsHalTvTunerV1_0TargetTest and VtsHalTvTunerV1_1TargetTest.
Change-Id: I93f2c9639033f8cb0f48de035e1c6ba488ea83e0
diff --git a/tv/tuner/1.0/vts/functional/FrontendTests.h b/tv/tuner/1.0/vts/functional/FrontendTests.h
index 33ff603..c789d94 100644
--- a/tv/tuner/1.0/vts/functional/FrontendTests.h
+++ b/tv/tuner/1.0/vts/functional/FrontendTests.h
@@ -103,7 +103,7 @@
 
     void setService(sp<ITuner> tuner) {
         mService = tuner;
-        mDvrTests.setService(tuner);
+        getDvrTests()->setService(tuner);
         getDefaultSoftwareFrontendPlaybackConfig(mDvrConfig);
     }
 
@@ -124,8 +124,8 @@
     void tuneTest(FrontendConfig frontendConf);
     void scanTest(FrontendConfig frontend, FrontendScanType type);
 
-    void setDvrTests(DvrTests dvrTests) { mDvrTests = dvrTests; }
-    void setDemux(sp<IDemux> demux) { mDvrTests.setDemux(demux); }
+    void setDvrTests(DvrTests* dvrTests) { mExternalDvrTests = dvrTests; }
+    void setDemux(sp<IDemux> demux) { getDvrTests()->setDemux(demux); }
     void setSoftwareFrontendDvrConfig(DvrConfig conf) { mDvrConfig = conf; }
 
   protected:
@@ -147,11 +147,16 @@
         dvrConfig.settings.playback(playbackSettings);
     }
 
+    DvrTests* getDvrTests() {
+        return (mExternalDvrTests != nullptr ? mExternalDvrTests : &mDvrTests);
+    }
+
     sp<IFrontend> mFrontend;
     FrontendInfo mFrontendInfo;
     sp<FrontendCallback> mFrontendCallback;
     hidl_vec<FrontendId> mFeIds;
 
+    DvrTests* mExternalDvrTests = nullptr;
     DvrTests mDvrTests;
     bool mIsSoftwareFe = false;
     DvrConfig mDvrConfig;