DevTools: Show FMP markers on timeline experiment

third_party/WebKit/Source/devtools/front_end/main/Main.js

Index: third_party/WebKit/Source/devtools/front_end/main/Main.js
diff --git a/third_party/WebKit/Source/devtools/front_end/main/Main.js b/third_party/WebKit/Source/devtools/front_end/main/Main.js
index 450076b2b0e1dc5ce42811b994805d0d42b27c51..1ae7474bcf6c79487b88b542a1f9a74efda11c45 100644
--- a/third_party/WebKit/Source/devtools/front_end/main/Main.js
+++ b/third_party/WebKit/Source/devtools/front_end/main/Main.js
@@ -110,6 +110,7 @@ Main.Main = class {
     Runtime.experiments.register('requestBlocking', 'Request blocking', true);
     Runtime.experiments.register('timelineShowAllEvents', 'Show all events on Timeline', true);
     Runtime.experiments.register('timelineShowAllProcesses', 'Show all processes on Timeline', true);
+    Runtime.experiments.register('timelineShowFMP', 'Show first meaningful paint marker on Timeline', true);

[pfeldman, 2017/01/06 00:05:59]

timelinePaintTimingMarkers

[alph, 2017/01/06 01:56:48]

Done.

     Runtime.experiments.register('sourceDiff', 'Source diff');
     Runtime.experiments.register('terminalInDrawer', 'Terminal in drawer', true);
     Runtime.experiments.register('timelineInvalidationTracking', 'Timeline invalidation tracking', true);