SF TimeStats: Make TimeStats class non-singleton

Bug: 119290000
Test: atest libsurfaceflinger_unittest:TimeStatsTest
Change-Id: I725a880506b0c0df14802db4bc38524ab4cf1ead
diff --git a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
index 85c835e..6d4f7ef 100644
--- a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
+++ b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
@@ -28,6 +28,8 @@
 #include "SurfaceFlingerFactory.h"
 #include "SurfaceInterceptor.h"
 
+#include "TimeStats/TimeStats.h"
+
 namespace android {
 
 class EventThread;
@@ -131,6 +133,11 @@
         return nullptr;
     }
 
+    std::unique_ptr<TimeStats> createTimeStats() override {
+        // TODO: Use test-fixture controlled factory
+        return std::make_unique<TimeStats>();
+    }
+
     using CreateBufferQueueFunction =
             std::function<void(sp<IGraphicBufferProducer>* /* outProducer */,
                                sp<IGraphicBufferConsumer>* /* outConsumer */,