Draw the text area resizer with drawing commands

content/shell/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")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/ui.gni")
 import("//build/config/win/console_app.gni")
 import("//build/config/win/manifest.gni")
 import("//media/media_options.gni")
@@ skipping 576 matching lines @@
       "app/English.lproj/HttpAuth.xib",
       "app/English.lproj/MainMenu.xib",
     ]
     output_path = "{{bundle_resources_dir}}/English.lproj"
   }
 
   bundle_data("content_shell_framework_resources") {
     sources = [
       "$root_out_dir/content_shell.pak",
       "resources/missingImage.png",
-      "resources/textAreaResizeCorner.png",
     ]
 
     public_deps = [
       ":pak",
     ]
 
     if (icu_use_data_file) {
       sources += [ "$root_out_dir/icudtl.dat" ]
       deps = [
         "//third_party/icu:icudata",
@@ skipping 202 matching lines @@
     data_deps += [
       "//breakpad:dump_syms",
       "//breakpad:microdump_stackwalk",
       "//breakpad:minidump_dump",
       "//breakpad:minidump_stackwalk",
       "//breakpad:symupload",
       "//tools/android/forwarder2",
     ]
   }
 }