Unify safe_browsing* components [1]: move safe_browsing_prefs*

components/safe_browsing/common/BUILD.gn

Index: components/safe_browsing/common/BUILD.gn
diff --git a/components/safe_browsing/common/BUILD.gn b/components/safe_browsing/common/BUILD.gn
index 4e32332c949f9b96b9857b307f5db77498a46b09..212b21df0d35826a7ca34be94d7c45b524907d96 100644
--- a/components/safe_browsing/common/BUILD.gn
+++ b/components/safe_browsing/common/BUILD.gn
@@ -20,3 +20,28 @@ source_set("common") {
     "//url/ipc:url_ipc",
   ]
 }
+
+static_library("safe_browsing_prefs") {
+  sources = [
+    "safe_browsing_prefs.cc",
+    "safe_browsing_prefs.h",
+  ]
+  deps = [
+    "//base:base",
+    "//components/prefs",
+  ]
+}
+
+source_set("unit_tests") {
+  testonly = true
+  sources = [
+    "safe_browsing_prefs_unittest.cc",
+  ]
+  deps = [
+    ":safe_browsing_prefs",
+    "//base:base",
+    "//base/test:test_support",
+    "//components/prefs:test_support",
+    "//testing/gtest",
+  ]
+}