Revert of Move more declarations from c/b/sb/sb_util.h to components.

components/safe_browsing_db/BUILD.gn

Index: components/safe_browsing_db/BUILD.gn
diff --git a/components/safe_browsing_db/BUILD.gn b/components/safe_browsing_db/BUILD.gn
index bc82f791341c4abc5501dcddb49348815a12f09d..4147fe9b59ff8cb1b75138856727c6e35a67367b 100644
--- a/components/safe_browsing_db/BUILD.gn
+++ b/components/safe_browsing_db/BUILD.gn
@@ -5,7 +5,7 @@
 group("safe_browsing_db") {
   deps = [
     ":prefix_set",
-    ":util",
+    ":safe_browsing_db_util",
   ]
 }
 
@@ -19,10 +19,10 @@
   ]
 }
 
-source_set("util") {
+source_set("safe_browsing_db_util") {
   sources = [
-    "util.cc",
-    "util.h",
+    "safe_browsing_db_util.cc",
+    "safe_browsing_db_util.h",
   ]
   deps = [
     "//base",
@@ -34,11 +34,11 @@
   testonly = true
   sources = [
     "prefix_set_unittest.cc",
-    "util_unittest.cc",
+    "safe_browsing_db_util_unittest.cc",
   ]
   deps = [
     ":prefix_set",
-    ":util",
+    ":safe_browsing_db_util",
     "//base",
     "//testing/gtest",
   ]