Move part of browsing data counter text util method to components

components/browsing_data/core/BUILD.gn

Index: components/browsing_data/core/BUILD.gn
diff --git a/components/browsing_data/core/BUILD.gn b/components/browsing_data/core/BUILD.gn
index 19ae36c9750293c9076cf8d124daaf472b0bc168..5490c341edeaa7ac9af4baf062d6724671d4c423 100644
--- a/components/browsing_data/core/BUILD.gn
+++ b/components/browsing_data/core/BUILD.gn
@@ -28,8 +28,10 @@ static_library("core") {
     "//components/history/core/browser",
     "//components/password_manager/core/browser",
     "//components/prefs:prefs",
+    "//components/strings",
     "//components/sync_driver",
     "//components/webdata/common",
+    "//ui/base",
   ]
 }
 
@@ -41,3 +43,16 @@ if (is_android) {
     ]
   }
 }
+
+source_set("unit_tests") {
+  testonly = true
+  sources = [
+    "browsing_data_utils_unittest.cc",
+  ]
+
+  deps = [
+    ":core",
+    "//base",
+    "//testing/gtest",
+  ]
+}