Move data use measurement to DataUseNetworkDelegate

components/data_use_measurement/core/BUILD.gn

Index: components/data_use_measurement/core/BUILD.gn
diff --git a/components/data_use_measurement/core/BUILD.gn b/components/data_use_measurement/core/BUILD.gn
index 77e9950a3c4c3874c3876bfb7db1b7fcb9a641a1..80030242f3404a851c927473b999fe823f7d8497 100644
--- a/components/data_use_measurement/core/BUILD.gn
+++ b/components/data_use_measurement/core/BUILD.gn
@@ -4,6 +4,17 @@
 
 static_library("core") {
   sources = [
+    "data_use_user_data.cc",
+    "data_use_user_data.h",
+  ]
+  deps = [
+    "//base",
+    "//net",
+  ]
+}
+
+static_library("ascriber") {
+  sources = [
     "data_use.cc",
     "data_use.h",
     "data_use_ascriber.cc",
@@ -12,11 +23,25 @@ static_library("core") {
     "data_use_network_delegate.h",
     "data_use_recorder.cc",
     "data_use_recorder.h",
-    "data_use_user_data.cc",
-    "data_use_user_data.h",
   ]
   deps = [
     "//base",
+    "//components/metrics",
+    "//net",
+  ]
+}
+
+source_set("unit_tests") {
+  sources = [
+    "data_use_network_delegate_unittest.cc",
+  ]
+  testonly = true
+  deps = [
+    "//base",
+    "//base/test:test_support",
+    "//components/data_use_measurement/core:ascriber",
+    "//components/data_use_measurement/core:core",
     "//net",
+    "//testing/gtest",
   ]
 }