Plumbing for getting FenceTracker timestamps

Change-Id: I1ebee9e42e28658bd3a2b161fdaabb7da756d8f3
diff --git a/services/surfaceflinger/SurfaceFlinger_hwc1.cpp b/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
index 71d7cf9..f4061e7 100644
--- a/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
+++ b/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
@@ -3593,6 +3593,11 @@
     return result;
 }
 
+bool SurfaceFlinger::getFrameTimestamps(const Layer& layer,
+        uint64_t frameNumber, FrameTimestamps* outTimestamps) {
+    return mFenceTracker.getFrameTimestamps(layer, frameNumber, outTimestamps);
+}
+
 void SurfaceFlinger::checkScreenshot(size_t w, size_t s, size_t h, void const* vaddr,
         const sp<const DisplayDevice>& hw, uint32_t minLayerZ, uint32_t maxLayerZ) {
     if (DEBUG_SCREENSHOTS) {