Revert "Ship the Credential Management API by default" from M50.

third_party/WebKit/LayoutTests/virtual/stable/webexposed/global-interface-listing-expected.txt

Index: third_party/WebKit/LayoutTests/virtual/stable/webexposed/global-interface-listing-expected.txt
diff --git a/third_party/WebKit/LayoutTests/virtual/stable/webexposed/global-interface-listing-expected.txt b/third_party/WebKit/LayoutTests/virtual/stable/webexposed/global-interface-listing-expected.txt
index f9b56f1c79dca0e87cd6deeed5a9597cfa7c7df0..da1849df26d37e3b694bcd85658c2c2089ccc186 100644
--- a/third_party/WebKit/LayoutTests/virtual/stable/webexposed/global-interface-listing-expected.txt
+++ b/third_party/WebKit/LayoutTests/virtual/stable/webexposed/global-interface-listing-expected.txt
@@ -488,17 +488,6 @@ interface ConvolverNode : AudioNode
     method constructor
     setter buffer
     setter normalize
-interface Credential
-    getter iconURL
-    getter id
-    getter name
-    getter type
-    method constructor
-interface CredentialsContainer
-    method constructor
-    method get
-    method requireUserMediation
-    method store
 interface Crypto
     getter subtle
     method constructor
@@ -1096,10 +1085,6 @@ interface EventTarget
     method constructor
     method dispatchEvent
     method removeEventListener
-interface FederatedCredential : Credential
-    getter protocol
-    getter provider
-    method constructor
 interface File : Blob
     getter lastModified
     getter lastModifiedDate
@@ -3050,7 +3035,6 @@ interface Navigator
     getter appName
     getter appVersion
     getter cookieEnabled
-    getter credentials
     getter doNotTrack
     getter geolocation
     getter hardwareConcurrency
@@ -3216,14 +3200,6 @@ interface OscillatorNode : AudioSourceNode
 interface PageTransitionEvent : Event
     getter persisted
     method constructor
-interface PasswordCredential : Credential
-    getter additionalData
-    getter idName
-    getter passwordName
-    method constructor
-    setter additionalData
-    setter idName
-    setter passwordName
 interface Path2D
     method arc
     method arcTo