Unify safe_browsing* components [1]: move safe_browsing_prefs*

components/safe_browsing_db/android/BUILD.gn

 # Copyright 2017 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/android/config.gni")
 import("//build/config/android/rules.gni")
+
 android_library("safe_browsing_java") {
   deps = [
     "//base:base_java",
     "//third_party/android_tools:android_support_annotations_java",
   ]
   java_files = [
     "java/src/org/chromium/components/safe_browsing/SafeBrowsingApiBridge.java",
     "java/src/org/chromium/components/safe_browsing/SafeBrowsingApiHandler.java",
   ]
 }
 
 generate_jni("jni_headers") {
   sources = [
     "java/src/org/chromium/components/safe_browsing/SafeBrowsingApiBridge.java",
   ]
-  jni_package = "components/safe_browsing_db/android"
+  jni_package = "components/safe_browsing/android"
 }