Update AffiliationFetcher to use new wire format.

components/password_manager/core/browser/affiliation_api.proto

Index: components/password_manager/core/browser/affiliation_api.proto
diff --git a/components/password_manager/core/browser/affiliation_api.proto b/components/password_manager/core/browser/affiliation_api.proto
index 2431b1b1024390d056b617363664e29c6171ce2a..353ab69b26dca94215c266ef1181f514dc4c188b 100644
--- a/components/password_manager/core/browser/affiliation_api.proto
+++ b/components/password_manager/core/browser/affiliation_api.proto
@@ -10,13 +10,33 @@ option optimize_for = LITE_RUNTIME;
 
 // A collection of facets affiliated with each other, i.e. an equivalence class.
 message Affiliation {
-  repeated string facet = 1;
+  repeated Facet facet = 1;
+}
+
+message Facet {
+  // The URI of the facet.
+  optional string id = 1;
+  optional BrandingInfo branding_info = 2;
+}
+
+message BrandingInfo {
+  optional string name = 1;
+  optional string icon_url = 2;
+}
+
+// Specifies what additional information to return with the response.
+message LookupAffiliationMask {
+  // Whether or not to fill |branding_info| for returned Facets.
+  optional bool branding_info = 1;
+  // The locale to use for |branding_info.name| for returned Facets.
+  optional string locale = 2;
 }
 
 // Encapsulates a lookup request to the Affiliation API.
 message LookupAffiliationRequest {
   // The facet URIs to query.
   repeated string facet = 1;
+  optional LookupAffiliationMask mask = 2;
 }
 
 // Encapsulates a lookup response from the the Affiliation API.