Add deduplication logic to .pak files

ui/base/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/buildflag_header.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/ui.gni")
 import("//build/util/branding.gni")
 import("//testing/test.gni")
@@ skipping 770 matching lines @@
     "clipboard/clipboard_mac_unittest.mm",
     "clipboard/clipboard_util_mac_unittest.mm",
     "l10n/l10n_util_mac_unittest.mm",
     "l10n/l10n_util_unittest.cc",
     "l10n/l10n_util_win_unittest.cc",
     "l10n/time_format_unittest.cc",
     "layout_unittest.cc",
     "material_design/material_design_controller_unittest.cc",
     "models/tree_node_iterator_unittest.cc",
     "resource/data_pack_literal.cc",
+    "resource/data_pack_literal.h",
     "resource/data_pack_unittest.cc",
     "resource/resource_bundle_unittest.cc",
     "resource/scale_factor_unittest.cc",
     "template_expressions_unittest.cc",
     "test/page_transition_types_unittest.cc",
     "test/run_all_unittests.cc",
     "user_activity/user_activity_detector_unittest.cc",
   ]
   if (!is_ios) {
     sources += [
@@ skipping 230 matching lines @@
   # This source set is used by both //chrome/browser and
   # //chrome/installer/setup.  It must have minimal dependencies for the latter
   # (e.g., no skia).
   source_set("fullscreen_win") {
     sources = [
       "fullscreen_win.cc",
       "fullscreen_win.h",
     ]
   }
 }