Add UMA private PPAPI interface for UMA logging from NaCl plugin

ppapi/ppapi_tests.gypi

 # Copyright (c) 2011 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.
 
 {
   'targets': [
      {
       'target_name': 'ppapi_example',
       'dependencies': [
         'ppapi_cpp'
@@ skipping 206 matching lines @@
         'tests/test_graphics_2d.h',
         'tests/test_image_data.cc',
         'tests/test_image_data.h',
         'tests/test_paint_aggregator.cc',
         'tests/test_paint_aggregator.h',
         'tests/test_post_message.cc',
         'tests/test_post_message.h',
         'tests/test_scrollbar.cc',
         'tests/test_scrollbar.h',
         'tests/test_struct_sizes.c',
+        'tests/test_uma.cc',
+        'tests/test_uma.h',
         'tests/test_url_loader.cc',
         'tests/test_url_loader.h',
         'tests/test_url_util.cc',
         'tests/test_url_util.h',
         'tests/test_utils.cc',
         'tests/test_utils.h',
         'tests/test_video_decoder.cc',
         'tests/test_video_decoder.h',
 
         # Deprecated test cases.
@@ skipping 65 matching lines @@
         'proxy/plugin_dispatcher_unittest.cc',
         'proxy/plugin_resource_tracker_unittest.cc',
         'proxy/plugin_var_tracker_unittest.cc',
         'proxy/ppapi_proxy_test.cc',
         'proxy/ppapi_proxy_test.h',
         'proxy/serialized_var_unittest.cc',
       ],
     },
   ],
 }