Refactor NaCl IRT toolchains, use arm-nacl-clang

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.
 
@@ skipping 612 matching lines @@
       "//chrome/test:load_library_perf_tests",
       "//chrome/tools/convert_dict",
       "//components/constrained_window:unit_tests",
       "//components/enhanced_bookmarks:test_support",
       "//components/metrics:serialization",
       "//components/password_manager/content/renderer:browser_tests",
       "//components/rappor:unit_tests",
       "//components/sessions:unit_tests",
       "//media/blink:media_blink_unittests",
       "//media/cast:udp_proxy",
-      "//native_client/src/trusted/platform_qualify:vcpuid",
       "//native_client/src/trusted/debug_stub:gdb_rsp_unittest",
       "//storage/browser:dump_file_system",
       "//third_party/angle:libANGLE",
       "//third_party/angle:libEGL",
       "//third_party/angle:libGLESv2",
       "//third_party/cld_2:cld_2_dynamic_data_tool",
       "//third_party/leveldatabase:leveldb_arena_test",
       "//third_party/leveldatabase:leveldb_bloom_test",
       "//third_party/leveldatabase:leveldb_db_test",
       "//third_party/leveldatabase:leveldb_crc32c_test",
@@ skipping 32 matching lines @@
       "//third_party/opus:test_opus_api",
       "//third_party/opus:test_opus_padding",
       "//third_party/webrtc/system_wrappers:field_trial_default",
       "//third_party/webrtc/system_wrappers:metrics_default",
       "//ui/display/types",
       "//ui/shell_dialogs:shell_dialogs_unittests",
       "//ui/views/examples:views_examples_exe",
     ]
 
     if (target_cpu == "x86" || target_cpu == "x64") {
-      deps += [ "//third_party/libjpeg_turbo:simd_asm" ]
+      deps += [
+        "//third_party/libjpeg_turbo:simd_asm",
+        "//native_client/src/trusted/platform_qualify:vcpuid",
+      ]
     }
     if (enable_nacl) {
       deps += [ "//native_client/src/trusted/service_runtime:sel_ldr" ]
     }
     if (use_ozone) {
       deps += [ "//ui/ozone/demo" ]
     }
     if (is_android) {
       deps += [ "//build/android/gyp/test:hello_world" ]
     }
@@ skipping 247 matching lines @@
       "//ui/views:views_unittests",  # TooltipControllerTest failures
       "//ui/wm:wm_unittests",  # PASSES 4/21/2015
       "//url:url_unittests",  # PASSES 4/17/2015
 
       # TODO(GYP) nacl_integration
       # TODO(GYP) telemetry_perf_unittests
       # TODO(GYP) telemetry_unittests
     ]
   }
 }