Get more of the mac GN build working.

Source/core/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("//third_party/WebKit/Source/bindings/bindings.gni")
 import("//third_party/WebKit/Source/bindings/core/v8/generated.gni")
 import("//third_party/WebKit/Source/bindings/modules/modules.gni")
 import("//third_party/WebKit/Source/bindings/modules/v8/generated.gni")
 import("//third_party/WebKit/Source/bindings/scripts/scripts.gni")
@@ skipping 242 matching lines @@
     cflags += [ "-Wno-uninitialized" ]
   } else {  # !is_android
     sources -= [
       "rendering/RenderThemeChromiumAndroid.cpp",
       "rendering/RenderThemeChromiumAndroid.h",
     ]
   }
 
   if (is_mac) {
     sources -= [
+      "rendering/RenderThemeChromiumDefault.cpp",
+      "rendering/RenderThemeChromiumDefault.h",

[Dirk Pranke, 2014/11/12 02:57:24]

Brett: These files, despite the name, are actual Aura-specific ...

       "rendering/RenderThemeChromiumFontProvider.cpp",
       "rendering/RenderThemeChromiumFontProvider.h",
       "rendering/RenderThemeChromiumSkia.cpp",
       "rendering/RenderThemeChromiumSkia.h",
     ]
     libs += [ "Carbon.framework" ]
     # Some Mac-specific parts of WebKit won't compile without having this
     # prefix header injected.
     cflags = [
       "-include",
@@ skipping 795 matching lines @@
     "$blink_core_output_dir/{{source_name_part}}.h",
   ]
   args = [
     "{{source}}",
     rel_blink_core_gen_dir,
     bison_exe,
   ]
 
   deps = make_core_generated_deps
 }