[MIPS] Adding NaCl/PNaCl support for mipsel to GN

BUILD.gn

 # Copyright (c) 2013 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.
 
 # This is the root build file for GN. GN will start processing by loading this
 # file, and recursively load all dependencies until all dependencies are either
 # resolved or known not to exist (which will cause the build to fail). So if
 # you add a new build file, there must be some path of dependencies from this
 # file to your new one or GN won't know about it.
 
 import("//build/config/compiler/compiler.gni")
 import("//build/config/features.gni")
+import("//build/config/nacl/config.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/ui.gni")
 import("//build_overrides/v8.gni")
 import("//media/media_options.gni")
 import("//third_party/openh264/openh264_args.gni")
 import("//tools/ipc_fuzzer/ipc_fuzzer.gni")
 import("//v8/gni/v8.gni")
 import("//v8/snapshot_toolchain.gni")
 
 if (is_android) {
@@ skipping 531 matching lines @@
 
     if (enable_extensions) {
       deps += [ "//extensions/shell:app_shell" ]
     }
 
     if (enable_nacl) {
       deps += [ "//components/nacl/loader:nacl_loader_unittests" ]
 
       if (is_linux) {
         # TODO(dpranke): Figure out what platforms should actually have this.
-        deps += [
-          "//components/nacl/loader:helper_nonsfi",
-          "//components/nacl/loader:nacl_helper",
-          "//components/nacl/loader:nacl_helper_nonsfi_unittests",
-        ]
+        deps += [ "//components/nacl/loader:nacl_helper" ]
+
+        if (is_nacl_nonsfi) {
+          deps += [
+            "//components/nacl/loader:helper_nonsfi",
+            "//components/nacl/loader:nacl_helper_nonsfi_unittests",
+          ]
+        }
       }
     }
 
     if (media_use_ffmpeg && !is_android) {
       deps += [ "//media:ffmpeg_regression_tests" ]
     }
   }
 
   if (is_android || (is_linux && !is_chromeos)) {
     deps += [
@@ skipping 543 matching lines @@
       "//ui/display:display_unittests",
       "//ui/events:events_unittests",
       "//ui/gfx:gfx_unittests",
       "//ui/gl:gl_unittests",
       "//ui/keyboard:keyboard_unittests",
       "//ui/touch_selection:ui_touch_selection_unittests",
       "//url:url_unittests",
     ]
   }
 }