NetInfo network quality extension: Add callbacks and Layout tests

third_party/WebKit/LayoutTests/FlagExpectations/enable-blink-features=LayoutNG

Index: third_party/WebKit/LayoutTests/FlagExpectations/enable-blink-features=LayoutNG
diff --git a/third_party/WebKit/LayoutTests/FlagExpectations/enable-blink-features=LayoutNG b/third_party/WebKit/LayoutTests/FlagExpectations/enable-blink-features=LayoutNG
index 17b33c1979c0b11061e25fcdf89b4c3ab01d1810..6d63013cd1e6705f5859baa761c70e4a8b88d784 100644
--- a/third_party/WebKit/LayoutTests/FlagExpectations/enable-blink-features=LayoutNG
+++ b/third_party/WebKit/LayoutTests/FlagExpectations/enable-blink-features=LayoutNG
@@ -20239,10 +20239,14 @@ crbug.com/591099 mojo/module-loading.html [ Pass Timeout ]
 crbug.com/591099 mojo/module-loading-manual-deps-loading.html [ Pass Timeout ]
 crbug.com/591099 netinfo/basic-operation.html [ Failure ]
 crbug.com/591099 netinfo/connection-types.html [ Failure ]
+crbug.com/591099 netinfo/estimate-basic-operation.html [ Failure ]
+crbug.com/591099 netinfo/estimate-multiple-frames.html [ Failure ]
+crbug.com/591099 netinfo/estimate-web-worker.html [ Failure ]
 crbug.com/591099 netinfo/gc-frame-listeners.html [ Failure ]
 crbug.com/591099 netinfo/gc-unused-listeners.html [ Failure ]
 crbug.com/591099 netinfo/gc-used-listeners.html [ Failure ]
 crbug.com/591099 netinfo/multiple-frames.html [ Failure ]
+crbug.com/591099 netinfo/network-quality.html [ Failure ]
 crbug.com/591099 netinfo/type-change-no-listener.html [ Failure ]
 crbug.com/591099 netinfo/unregister-during-event.html [ Failure ]
 crbug.com/591099 netinfo/web-worker.html [ Failure ]