MenuButton: support Mac look & feel

ui/gfx/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/ui.gni")
 import("//testing/test.gni")
 
 if (is_android) {
   import("//build/config/android/config.gni")
   import("//build/config/android/rules.gni")
@@ skipping 144 matching lines @@
     "platform_font_mac.h",
     "platform_font_mac.mm",
     "platform_font_win.cc",
     "platform_font_win.h",
     "range/range.cc",
     "range/range.h",
     "range/range_f.cc",
     "range/range_f.h",
     "range/range_mac.mm",
     "range/range_win.cc",
     "scoped_canvas.h",

[tapted, 2016/04/22 13:46:52]

scoped_canvas.cc probably needs to be here too

[Elly Fong-Jones, 2016/04/25 14:30:50]

Done.

     "scoped_cg_context_save_gstate_mac.h",
     "scoped_ns_graphics_context_save_gstate_mac.h",
     "scoped_ns_graphics_context_save_gstate_mac.mm",
     "scoped_ui_graphics_push_context_ios.h",
     "scoped_ui_graphics_push_context_ios.mm",
     "screen.cc",
     "screen.h",
     "screen_android.cc",
     "screen_aura.cc",
     "screen_ios.mm",
@@ skipping 397 matching lines @@
     # but rather a response file listing the inputs or sometimes the build will
     # be incorrect. In this case, Ninja won't be able to do proper dependency
     # tracking since if a file is deleted, the command line will be the same
     # and the action will not be re-run.
     "--working_directory=" + rebase_path("vector_icons/"),
     "--output_cc=" + rebase_path(vector_icons_cc_file, root_build_dir),
     "--output_h=" + rebase_path(vector_icons_h_file, root_build_dir),
   ]
 
   if (is_mac) {
-    sources += [ "vector_icons/combobox_arrow_mac.icon" ]
+    sources += [
+      "vector_icons/combobox_arrow_mac.icon",
+      "vector_icons/menu_button_arrow_mac.icon",
+    ]
   }
 }
 
 # Looking for gfx_geometry? It's //ui/gfx/geometry:geometry
 
 # Depend on this to use native_widget_types.h without pulling in all of gfx.
 source_set("native_widget_types") {
   public = [
     "native_widget_types.h",
   ]
@@ skipping 262 matching lines @@
 if (is_android) {
   generate_jni("gfx_jni_headers") {
     sources = [
       "../android/java/src/org/chromium/ui/gfx/BitmapHelper.java",
       "../android/java/src/org/chromium/ui/gfx/DeviceDisplayInfo.java",
       "../android/java/src/org/chromium/ui/gfx/ViewConfigurationHelper.java",
     ]
     jni_package = "gfx"
   }
 }