Promote Scroll Anchoring to experimental

third_party/WebKit/Source/platform/RuntimeEnabledFeatures.in

Index: third_party/WebKit/Source/platform/RuntimeEnabledFeatures.in
diff --git a/third_party/WebKit/Source/platform/RuntimeEnabledFeatures.in b/third_party/WebKit/Source/platform/RuntimeEnabledFeatures.in
index 85d9f9d7b191bc4213affbc8232629c01f804d03..876eaf058111f62767c45c4dfb38a60bd5c253af 100644
--- a/third_party/WebKit/Source/platform/RuntimeEnabledFeatures.in
+++ b/third_party/WebKit/Source/platform/RuntimeEnabledFeatures.in
@@ -191,7 +191,7 @@ RootLayerScrolling
 RTCPeerConnectionNewGetStats status=test
 ScriptedSpeech status=stable
 // Scrolls to compensate for layout movements (bit.ly/scroll-anchoring).
-ScrollAnchoring settable_from_internals=True
+ScrollAnchoring status=experimental, settable_from_internals=True

[ojan, 2016/09/13 21:52:09]

IIRC, experimental just means that it'll be enabled for anyone who turns on the
--enabled-experimental-web-platform-features flag. Is that what you were going
for? If not, I think you want status=stable.

 // Implements documentElement.scrollTop/Left and bodyElement.scrollTop/Left
 // as per the spec, matching other Web engines.
 ScrollTopLeftInterop status=experimental