Remove HTTP specific logic from BlindSignAuth and dependencies

PiperOrigin-RevId: 627465992

build/source_list.bzl

diff --git a/build/source_list.bzl b/build/source_list.bzl
index 465be42..83c2a51 100644
--- a/build/source_list.bzl
+++ b/build/source_list.bzl
@@ -1625,14 +1625,15 @@
     "blind_sign_auth/blind_sign_auth.h",
     "blind_sign_auth/blind_sign_auth_interface.h",
     "blind_sign_auth/blind_sign_auth_protos.h",
-    "blind_sign_auth/blind_sign_http_response.h",
     "blind_sign_auth/blind_sign_message_interface.h",
+    "blind_sign_auth/blind_sign_message_response.h",
     "blind_sign_auth/cached_blind_sign_auth.h",
     "blind_sign_auth/test_tools/mock_blind_sign_auth_interface.h",
-    "blind_sign_auth/test_tools/mock_blind_sign_http_interface.h",
+    "blind_sign_auth/test_tools/mock_blind_sign_message_interface.h",
 ]
 blind_sign_auth_srcs = [
     "blind_sign_auth/blind_sign_auth.cc",
+    "blind_sign_auth/blind_sign_message_response.cc",
     "blind_sign_auth/cached_blind_sign_auth.cc",
 ]
 blind_sign_auth_tests_hdrs = [

build/source_list.gni

diff --git a/build/source_list.gni b/build/source_list.gni
index 1bb50dd..70587e1 100644
--- a/build/source_list.gni
+++ b/build/source_list.gni
@@ -1629,14 +1629,15 @@
     "src/quiche/blind_sign_auth/blind_sign_auth.h",
     "src/quiche/blind_sign_auth/blind_sign_auth_interface.h",
     "src/quiche/blind_sign_auth/blind_sign_auth_protos.h",
-    "src/quiche/blind_sign_auth/blind_sign_http_response.h",
     "src/quiche/blind_sign_auth/blind_sign_message_interface.h",
+    "src/quiche/blind_sign_auth/blind_sign_message_response.h",
     "src/quiche/blind_sign_auth/cached_blind_sign_auth.h",
     "src/quiche/blind_sign_auth/test_tools/mock_blind_sign_auth_interface.h",
-    "src/quiche/blind_sign_auth/test_tools/mock_blind_sign_http_interface.h",
+    "src/quiche/blind_sign_auth/test_tools/mock_blind_sign_message_interface.h",
 ]
 blind_sign_auth_srcs = [
     "src/quiche/blind_sign_auth/blind_sign_auth.cc",
+    "src/quiche/blind_sign_auth/blind_sign_message_response.cc",
     "src/quiche/blind_sign_auth/cached_blind_sign_auth.cc",
 ]
 blind_sign_auth_tests_hdrs = [

build/source_list.json

diff --git a/build/source_list.json b/build/source_list.json
index fb45e82..191c426 100644
--- a/build/source_list.json
+++ b/build/source_list.json
@@ -1628,14 +1628,15 @@
     "quiche/blind_sign_auth/blind_sign_auth.h",
     "quiche/blind_sign_auth/blind_sign_auth_interface.h",
     "quiche/blind_sign_auth/blind_sign_auth_protos.h",
-    "quiche/blind_sign_auth/blind_sign_http_response.h",
     "quiche/blind_sign_auth/blind_sign_message_interface.h",
+    "quiche/blind_sign_auth/blind_sign_message_response.h",
     "quiche/blind_sign_auth/cached_blind_sign_auth.h",
     "quiche/blind_sign_auth/test_tools/mock_blind_sign_auth_interface.h",
-    "quiche/blind_sign_auth/test_tools/mock_blind_sign_http_interface.h"
+    "quiche/blind_sign_auth/test_tools/mock_blind_sign_message_interface.h"
   ],
   "blind_sign_auth_srcs": [
     "quiche/blind_sign_auth/blind_sign_auth.cc",
+    "quiche/blind_sign_auth/blind_sign_message_response.cc",
     "quiche/blind_sign_auth/cached_blind_sign_auth.cc"
   ],
   "blind_sign_auth_tests_hdrs": [