Componentize conversion of content::FaviconURL to favicon::FaviconURL

components/favicon/content/BUILD.gn

 # Copyright 2015 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.
 
-static_library("common") {
+static_library("content") {
   sources = [
-    "data_reduction_proxy_messages.cc",
-    "data_reduction_proxy_messages.h",
+    "favicon_url_util.cc",
+    "favicon_url_util.h",
   ]
 
   deps = [
+    "//components/favicon/core",
+    "//components/favicon_base",
+    "//content/public/browser",
     "//content/public/common",
-    "//ipc",
-    "//net",
   ]
 }