SurfaceFlinger: Shared timeline plumbing

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

Bug: 162890382
Bug: 162888881

Test: SF unit tests
Change-Id: Ifb76e6bf28d43c051e6c8ff568437ec9a106b865
diff --git a/libs/nativewindow/include/system/window.h b/libs/nativewindow/include/system/window.h
index b78fc5d..138e08f 100644
--- a/libs/nativewindow/include/system/window.h
+++ b/libs/nativewindow/include/system/window.h
@@ -255,6 +255,7 @@
     NATIVE_WINDOW_ALLOCATE_BUFFERS                = 45,    /* private */
     NATIVE_WINDOW_GET_LAST_QUEUED_BUFFER          = 46,    /* private */
     NATIVE_WINDOW_SET_QUERY_INTERCEPTOR           = 47,    /* private */
+    NATIVE_WINDOW_SET_FRAME_TIMELINE_VSYNC        = 48,    /* private */
     // clang-format on
 };
 
@@ -1022,6 +1023,12 @@
                            (int)compatibility);
 }
 
+static inline int native_window_set_frame_timeline_vsync(struct ANativeWindow* window,
+                                                         int64_t frameTimelineVsyncId) {
+    return window->perform(window, NATIVE_WINDOW_SET_FRAME_TIMELINE_VSYNC,
+                           frameTimelineVsyncId);
+}
+
 // ------------------------------------------------------------------------------------------------
 // Candidates for APEX visibility
 // These functions are planned to be made stable for APEX modules, but have not