[Offline pages] Empty RequestQueue and SavePageRequest

components/offline_pages/background/BUILD.gn

Index: components/offline_pages/background/BUILD.gn
diff --git a/components/offline_pages/background/BUILD.gn b/components/offline_pages/background/BUILD.gn
index 6f9c3ff553e87082d3a266a8cb80c9856ce329bb..2f4b970215d60498c11659ffe0b47f534bdbe177 100644
--- a/components/offline_pages/background/BUILD.gn
+++ b/components/offline_pages/background/BUILD.gn
@@ -12,6 +12,10 @@ static_library("background_offliner") {
     "offliner.h",
     "request_coordinator.cc",
     "request_coordinator.h",
+    "request_queue.cc",
+    "request_queue.h",
+    "save_page_request.cc",
+    "save_page_request.h",
     "scheduler.h",
   ]
 
@@ -22,3 +26,18 @@ static_library("background_offliner") {
     "//url",
   ]
 }
+
+source_set("unit_tests") {
+  testonly = true
+  sources = [
+    "save_page_request_unittest.cc",
+  ]
+
+  deps = [
+    ":background_offliner",
+    "//base",
+    "//components/offline_pages:offline_pages",
+    "//testing/gtest",
+    "//url",
+  ]
+}