Add GPU completion to FrameMetrics (1/3)

- Add SurfaceStatsCallback to TransactionCompletedListener
- Register a callback in RenderProxy to be called when we have
surface stats from SF via the BLAST callback.
- Instead of finishing a frame for frame metrics reporting
immediately, wait until BLAST callback fires, note GPU completion
time and finish frame.
- Expose GPU_COMPLETION in FrameMetrics
- Modify TOTAL_DURATION to also include GPU_COMPLETION

Test: FrameMetricsListenerTest
Fixes: 171046219
Change-Id: I16fa1d80cfc4e7a5527c18fec7e885409f17ee4d
diff --git a/libs/hwui/FrameInfo.cpp b/libs/hwui/FrameInfo.cpp
index 8b20492..ce9b288 100644
--- a/libs/hwui/FrameInfo.cpp
+++ b/libs/hwui/FrameInfo.cpp
@@ -42,7 +42,7 @@
         "GpuCompleted",
 };
 
-static_assert(static_cast<int>(FrameInfoIndex::NumIndexes) == 19,
+static_assert(static_cast<int>(FrameInfoIndex::NumIndexes) == 20,
               "Must update value in FrameMetrics.java#FRAME_STATS_COUNT (and here)");
 
 void FrameInfo::importUiThreadInfo(int64_t* info) {