Refactor language detection logic to allow non-static CLD data sources.

components/translate/content/browser/BUILD.gn

 # Copyright 2014 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/features.gni")
 
 static_library("browser") {
   sources = [
+    "browser_cld_data_provider_factory.cc",
+    "browser_cld_data_provider_factory.h",
+    "browser_cld_data_provider.cc",
     "browser_cld_data_provider.h",
+    "browser_cld_utils.cc",
+    "browser_cld_utils.h",
     "content_translate_driver.cc",
     "content_translate_driver.h",
+    "data_file_browser_cld_data_provider.cc",
+    "data_file_browser_cld_data_provider.h",
   ]
 
   deps = [
     "//base",
     "//components/translate/core/browser",
     "//content/public/browser",
   ]
 
-  if (cld2_data_source == "standalone" || cld2_data_source == "component") {
-    sources += [
-      "data_file_browser_cld_data_provider.cc",
-      "data_file_browser_cld_data_provider.h",
-    ]
-  } else if (cld2_data_source == "static") {
-    sources += [
-      "static_browser_cld_data_provider.cc",
-      "static_browser_cld_data_provider.h",
-    ]
-  }
 }