TimeStats: bound the layer records and dump in SF dumpsys

Fixes: 131121064
Test: all SF tests
Change-Id: Ief641dfb4f69e5099a7fbf42dcdeecc5eb3d2bf9
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 3744f8b..17d5b9a 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -4856,6 +4856,9 @@
     result.append(mScheduler->doDump() + "\n");
     StringAppendF(&result, "+  Smart video mode: %s\n\n", mUseSmart90ForVideo ? "on" : "off");
     result.append(mRefreshRateStats.doDump() + "\n");
+
+    result.append(mTimeStats->miniDump());
+    result.append("\n");
 }
 
 const Vector<sp<Layer>>& SurfaceFlinger::getLayerSortedByZForHwcDisplay(DisplayId displayId) {