[Offline Prefetech] Send GetOperationReqest to the server

components/offline_pages/core/prefetch/BUILD.gn

Index: components/offline_pages/core/prefetch/BUILD.gn
diff --git a/components/offline_pages/core/prefetch/BUILD.gn b/components/offline_pages/core/prefetch/BUILD.gn
index 98044bbc3a1c8ebfeabd653dd6bb71da349721d8..a998f9f316811392bc0b4eae3a4099230b3c0961 100644
--- a/components/offline_pages/core/prefetch/BUILD.gn
+++ b/components/offline_pages/core/prefetch/BUILD.gn
@@ -11,6 +11,10 @@ static_library("prefetch") {
   sources = [
     "generate_page_bundle_request.cc",
     "generate_page_bundle_request.h",
+    "get_operation_request.cc",
+    "get_operation_request.h",
+    "prefetch_proto_utils.cc",
+    "prefetch_proto_utils.h",
     "prefetch_request_fetcher.cc",
     "prefetch_request_fetcher.h",
     "prefetch_service.h",
@@ -18,8 +22,6 @@ static_library("prefetch") {
     "prefetch_service_impl.h",
     "prefetch_types.cc",
     "prefetch_types.h",
-    "prefetch_utils.cc",
-    "prefetch_utils.h",
   ]
 
   public_deps = [
@@ -48,7 +50,9 @@ source_set("unit_tests") {
   testonly = true
   sources = [
     "generate_page_bundle_request_unittest.cc",
+    "get_operation_request_unittest.cc",
     "prefetch_request_fetcher_unittest.cc",
+    "prefetch_request_operation_response_unittest.cc",
     "prefetch_request_test_base.cc",
     "prefetch_request_test_base.h",
     "prefetch_service_impl_unittest.cc",