Shared timeline plumbing

Add plumbing to get shared timeline data from Surface Flinger to HWUI
and back.

Bug: 162890382
Bug: 162888881
Bug: 162890407

Test: manual using ALOG messages in SF
Change-Id: I85c5eb56d2fa933889518854e7b79b1e65e29af3
diff --git a/libs/hwui/FrameInfo.cpp b/libs/hwui/FrameInfo.cpp
index 0698775..30ce537 100644
--- a/libs/hwui/FrameInfo.cpp
+++ b/libs/hwui/FrameInfo.cpp
@@ -22,6 +22,7 @@
 
 const std::string FrameInfoNames[] = {
         "Flags",
+        "FrameTimelineVsyncId",
         "IntendedVsync",
         "Vsync",
         "OldestInputEvent",
@@ -44,7 +45,7 @@
                       static_cast<int>(FrameInfoIndex::NumIndexes),
               "size mismatch: FrameInfoNames doesn't match the enum!");
 
-static_assert(static_cast<int>(FrameInfoIndex::NumIndexes) == 17,
+static_assert(static_cast<int>(FrameInfoIndex::NumIndexes) == 18,
               "Must update value in FrameMetrics.java#FRAME_STATS_COUNT (and here)");
 
 void FrameInfo::importUiThreadInfo(int64_t* info) {