Split browser-specific and generic code in components/task_scheduler_util/.

components/task_scheduler_util/common/BUILD.gn

Index: components/task_scheduler_util/common/BUILD.gn
diff --git a/components/task_scheduler_util/initialization/BUILD.gn b/components/task_scheduler_util/common/BUILD.gn
similarity index 71%
copy from components/task_scheduler_util/initialization/BUILD.gn
copy to components/task_scheduler_util/common/BUILD.gn
index 213326bd9971e542f3c4bc0ada1d05f3f8d4d3a3..d0e0566f16c8857b815139686e7a85adf6e20b8f 100644
--- a/components/task_scheduler_util/initialization/BUILD.gn
+++ b/components/task_scheduler_util/common/BUILD.gn
@@ -2,10 +2,10 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-static_library("initialization") {
+static_library("common") {
   sources = [
-    "browser_util.cc",
-    "browser_util.h",
+    "variations_util.cc",
+    "variations_util.h",
   ]
 
   deps = [
@@ -16,10 +16,10 @@ static_library("initialization") {
 source_set("unit_tests") {
   testonly = true
   sources = [
-    "browser_util_unittest.cc",
+    "variations_util_unittest.cc",
   ]
   deps = [
-    ":initialization",
+    ":common",
     "//base",
     "//testing/gtest",
   ]