diff --git a/api_names_out.yaml b/api_names_out.yaml
index 731ff418e..1fbcc0f6d 100644
--- a/api_names_out.yaml
+++ b/api_names_out.yaml
@@ -90759,6 +90759,8 @@
 "/servicecontrol:v1/AuthenticationInfo": authentication_info
 "/servicecontrol:v1/AuthenticationInfo/authoritySelector": authority_selector
 "/servicecontrol:v1/AuthenticationInfo/principalEmail": principal_email
+"/servicecontrol:v1/AuthenticationInfo/serviceAccountDelegationInfo": service_account_delegation_info
+"/servicecontrol:v1/AuthenticationInfo/serviceAccountDelegationInfo/service_account_delegation_info": service_account_delegation_info
 "/servicecontrol:v1/AuthenticationInfo/serviceAccountKeyName": service_account_key_name
 "/servicecontrol:v1/AuthenticationInfo/thirdPartyPrincipal": third_party_principal
 "/servicecontrol:v1/AuthenticationInfo/thirdPartyPrincipal/third_party_principal": third_party_principal
@@ -90820,6 +90822,10 @@
 "/servicecontrol:v1/ExponentialBuckets/growthFactor": growth_factor
 "/servicecontrol:v1/ExponentialBuckets/numFiniteBuckets": num_finite_buckets
 "/servicecontrol:v1/ExponentialBuckets/scale": scale
+"/servicecontrol:v1/FirstPartyPrincipal": first_party_principal
+"/servicecontrol:v1/FirstPartyPrincipal/principalEmail": principal_email
+"/servicecontrol:v1/FirstPartyPrincipal/serviceMetadata": service_metadata
+"/servicecontrol:v1/FirstPartyPrincipal/serviceMetadata/service_metadatum": service_metadatum
 "/servicecontrol:v1/HttpRequest": http_request
 "/servicecontrol:v1/HttpRequest/cacheFillBytes": cache_fill_bytes
 "/servicecontrol:v1/HttpRequest/cacheHit": cache_hit
@@ -90994,6 +91000,9 @@
 "/servicecontrol:v1/ResourceLocation/currentLocations/current_location": current_location
 "/servicecontrol:v1/ResourceLocation/originalLocations": original_locations
 "/servicecontrol:v1/ResourceLocation/originalLocations/original_location": original_location
+"/servicecontrol:v1/ServiceAccountDelegationInfo": service_account_delegation_info
+"/servicecontrol:v1/ServiceAccountDelegationInfo/firstPartyPrincipal": first_party_principal
+"/servicecontrol:v1/ServiceAccountDelegationInfo/thirdPartyPrincipal": third_party_principal
 "/servicecontrol:v1/StartReconciliationRequest": start_reconciliation_request
 "/servicecontrol:v1/StartReconciliationRequest/reconciliationOperation": reconciliation_operation
 "/servicecontrol:v1/StartReconciliationRequest/serviceConfigId": service_config_id
@@ -91010,6 +91019,9 @@
 "/servicecontrol:v1/Status/details/detail": detail
 "/servicecontrol:v1/Status/details/detail/detail": detail
 "/servicecontrol:v1/Status/message": message
+"/servicecontrol:v1/ThirdPartyPrincipal": third_party_principal
+"/servicecontrol:v1/ThirdPartyPrincipal/thirdPartyClaims": third_party_claims
+"/servicecontrol:v1/ThirdPartyPrincipal/thirdPartyClaims/third_party_claim": third_party_claim
 "/servicecontrol:v1/fields": fields
 "/servicecontrol:v1/key": key
 "/servicecontrol:v1/quotaUser": quota_user
diff --git a/generated/google/apis/servicecontrol_v1.rb b/generated/google/apis/servicecontrol_v1.rb
index 9288748e8..7b656be63 100644
--- a/generated/google/apis/servicecontrol_v1.rb
+++ b/generated/google/apis/servicecontrol_v1.rb
@@ -26,7 +26,7 @@ module Google
     # @see https://cloud.google.com/service-control/
     module ServicecontrolV1
       VERSION = 'V1'
-      REVISION = '20190211'
+      REVISION = '20190217'
 
       # View and manage your data across Google Cloud Platform services
       AUTH_CLOUD_PLATFORM = 'https://www.googleapis.com/auth/cloud-platform'
diff --git a/generated/google/apis/servicecontrol_v1/classes.rb b/generated/google/apis/servicecontrol_v1/classes.rb
index bff1d46c2..6735f9bfb 100644
--- a/generated/google/apis/servicecontrol_v1/classes.rb
+++ b/generated/google/apis/servicecontrol_v1/classes.rb
@@ -387,6 +387,15 @@ module Google
         # @return [String]
         attr_accessor :principal_email
       
+        # Identity delegation history of an authenticated service account that makes
+        # the request. It contains information on the real authorities that try to
+        # access GCP resources by delegating on a service account. When multiple
+        # authorities present, they are guaranteed to be sorted based on the original
+        # ordering of the identity delegation events.
+        # Corresponds to the JSON property `serviceAccountDelegationInfo`
+        # @return [Array<Google::Apis::ServicecontrolV1::ServiceAccountDelegationInfo>]
+        attr_accessor :service_account_delegation_info
+      
         # The name of the service account key used to create or exchange
         # credentials for authenticating the service account making the request.
         # This is a scheme-less URI full resource name. For example:
@@ -412,6 +421,7 @@ module Google
         def update!(**args)
           @authority_selector = args[:authority_selector] if args.key?(:authority_selector)
           @principal_email = args[:principal_email] if args.key?(:principal_email)
+          @service_account_delegation_info = args[:service_account_delegation_info] if args.key?(:service_account_delegation_info)
           @service_account_key_name = args[:service_account_key_name] if args.key?(:service_account_key_name)
           @third_party_principal = args[:third_party_principal] if args.key?(:third_party_principal)
         end
@@ -848,6 +858,33 @@ module Google
         end
       end
       
+      # First party identity principal.
+      class FirstPartyPrincipal
+        include Google::Apis::Core::Hashable
+      
+        # The email address of a Google account.
+        # .
+        # Corresponds to the JSON property `principalEmail`
+        # @return [String]
+        attr_accessor :principal_email
+      
+        # Metadata about the service that uses the service account.
+        # .
+        # Corresponds to the JSON property `serviceMetadata`
+        # @return [Hash<String,Object>]
+        attr_accessor :service_metadata
+      
+        def initialize(**args)
+           update!(**args)
+        end
+      
+        # Update properties of this object
+        def update!(**args)
+          @principal_email = args[:principal_email] if args.key?(:principal_email)
+          @service_metadata = args[:service_metadata] if args.key?(:service_metadata)
+        end
+      end
+      
       # A common proto for logging HTTP requests. Only contains semantics
       # defined by the HTTP specification. Product-specific logging
       # information MUST be defined in a separate message.
@@ -2139,6 +2176,31 @@ module Google
         end
       end
       
+      # Identity delegation history of an authenticated service account.
+      class ServiceAccountDelegationInfo
+        include Google::Apis::Core::Hashable
+      
+        # First party identity principal.
+        # Corresponds to the JSON property `firstPartyPrincipal`
+        # @return [Google::Apis::ServicecontrolV1::FirstPartyPrincipal]
+        attr_accessor :first_party_principal
+      
+        # Third party identity principal.
+        # Corresponds to the JSON property `thirdPartyPrincipal`
+        # @return [Google::Apis::ServicecontrolV1::ThirdPartyPrincipal]
+        attr_accessor :third_party_principal
+      
+        def initialize(**args)
+           update!(**args)
+        end
+      
+        # Update properties of this object
+        def update!(**args)
+          @first_party_principal = args[:first_party_principal] if args.key?(:first_party_principal)
+          @third_party_principal = args[:third_party_principal] if args.key?(:third_party_principal)
+        end
+      end
+      
       # The `Status` type defines a logical error model that is suitable for different
       # programming environments, including REST APIs and RPC APIs. It is used by
       # [gRPC](https://github.com/grpc). The error model is designed to be:
@@ -2210,6 +2272,25 @@ module Google
           @message = args[:message] if args.key?(:message)
         end
       end
+      
+      # Third party identity principal.
+      class ThirdPartyPrincipal
+        include Google::Apis::Core::Hashable
+      
+        # Metadata about third party identity.
+        # Corresponds to the JSON property `thirdPartyClaims`
+        # @return [Hash<String,Object>]
+        attr_accessor :third_party_claims
+      
+        def initialize(**args)
+           update!(**args)
+        end
+      
+        # Update properties of this object
+        def update!(**args)
+          @third_party_claims = args[:third_party_claims] if args.key?(:third_party_claims)
+        end
+      end
     end
   end
 end
diff --git a/generated/google/apis/servicecontrol_v1/representations.rb b/generated/google/apis/servicecontrol_v1/representations.rb
index 0ff05a09d..c1689c3b1 100644
--- a/generated/google/apis/servicecontrol_v1/representations.rb
+++ b/generated/google/apis/servicecontrol_v1/representations.rb
@@ -112,6 +112,12 @@ module Google
         include Google::Apis::Core::JsonObjectSupport
       end
       
+      class FirstPartyPrincipal
+        class Representation < Google::Apis::Core::JsonRepresentation; end
+      
+        include Google::Apis::Core::JsonObjectSupport
+      end
+      
       class HttpRequest
         class Representation < Google::Apis::Core::JsonRepresentation; end
       
@@ -244,12 +250,24 @@ module Google
         include Google::Apis::Core::JsonObjectSupport
       end
       
+      class ServiceAccountDelegationInfo
+        class Representation < Google::Apis::Core::JsonRepresentation; end
+      
+        include Google::Apis::Core::JsonObjectSupport
+      end
+      
       class Status
         class Representation < Google::Apis::Core::JsonRepresentation; end
       
         include Google::Apis::Core::JsonObjectSupport
       end
       
+      class ThirdPartyPrincipal
+        class Representation < Google::Apis::Core::JsonRepresentation; end
+      
+        include Google::Apis::Core::JsonObjectSupport
+      end
+      
       class AllocateInfo
         # @private
         class Representation < Google::Apis::Core::JsonRepresentation
@@ -321,6 +339,8 @@ module Google
         class Representation < Google::Apis::Core::JsonRepresentation
           property :authority_selector, as: 'authoritySelector'
           property :principal_email, as: 'principalEmail'
+          collection :service_account_delegation_info, as: 'serviceAccountDelegationInfo', class: Google::Apis::ServicecontrolV1::ServiceAccountDelegationInfo, decorator: Google::Apis::ServicecontrolV1::ServiceAccountDelegationInfo::Representation
+      
           property :service_account_key_name, as: 'serviceAccountKeyName'
           hash :third_party_principal, as: 'thirdPartyPrincipal'
         end
@@ -425,6 +445,14 @@ module Google
         end
       end
       
+      class FirstPartyPrincipal
+        # @private
+        class Representation < Google::Apis::Core::JsonRepresentation
+          property :principal_email, as: 'principalEmail'
+          hash :service_metadata, as: 'serviceMetadata'
+        end
+      end
+      
       class HttpRequest
         # @private
         class Representation < Google::Apis::Core::JsonRepresentation
@@ -691,6 +719,16 @@ module Google
         end
       end
       
+      class ServiceAccountDelegationInfo
+        # @private
+        class Representation < Google::Apis::Core::JsonRepresentation
+          property :first_party_principal, as: 'firstPartyPrincipal', class: Google::Apis::ServicecontrolV1::FirstPartyPrincipal, decorator: Google::Apis::ServicecontrolV1::FirstPartyPrincipal::Representation
+      
+          property :third_party_principal, as: 'thirdPartyPrincipal', class: Google::Apis::ServicecontrolV1::ThirdPartyPrincipal, decorator: Google::Apis::ServicecontrolV1::ThirdPartyPrincipal::Representation
+      
+        end
+      end
+      
       class Status
         # @private
         class Representation < Google::Apis::Core::JsonRepresentation
@@ -699,6 +737,13 @@ module Google
           property :message, as: 'message'
         end
       end
+      
+      class ThirdPartyPrincipal
+        # @private
+        class Representation < Google::Apis::Core::JsonRepresentation
+          hash :third_party_claims, as: 'thirdPartyClaims'
+        end
+      end
     end
   end
 end