Refactor VariationsHttpHeaderProvider.

components/variations/BUILD.gn

Index: components/variations/BUILD.gn
diff --git a/components/variations/BUILD.gn b/components/variations/BUILD.gn
index a65148ae55af9d617d34bfc1a505084691f162b5..c490cabe2e9095c0a69701bd242c204a3fb787a6 100644
--- a/components/variations/BUILD.gn
+++ b/components/variations/BUILD.gn
@@ -34,10 +34,14 @@ source_set("variations") {
     "proto/variations_seed.proto",
     "study_filtering.cc",
     "study_filtering.h",
+    "synthetic_trials.cc",
+    "synthetic_trials.h",
     "variations_associated_data.cc",
     "variations_associated_data.h",
     "variations_experiment_util.cc",
     "variations_experiment_util.h",
+    "variations_http_header_provider.cc",
+    "variations_http_header_provider.h",
     "variations_request_scheduler.cc",
     "variations_request_scheduler.h",
     "variations_seed_processor.cc",
@@ -96,9 +100,10 @@ source_set("unit_tests") {
     "entropy_provider_unittest.cc",
     "experiment_labels_unittest.cc",
     "metrics_util_unittest.cc",
-    "net/variations_http_header_provider_unittest.cc",
+    "net/variations_http_headers_unittest.cc",
     "study_filtering_unittest.cc",
     "variations_associated_data_unittest.cc",
+    "variations_http_header_provider_unittest.cc",
     "variations_request_scheduler_unittest.cc",
     "variations_seed_processor_unittest.cc",
     "variations_seed_simulator_unittest.cc",