Fix PPAPI time conversion code to handle epoch times.

ppapi/ppapi_tests.gypi

 # Copyright (c) 2012 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_tests',
       'type': 'loadable_module',
       'include_dirs': [
@@ skipping 140 matching lines @@
         'proxy/plugin_resource_tracker_unittest.cc',
         'proxy/plugin_var_tracker_unittest.cc',
         'proxy/ppb_var_unittest.cc',
         'proxy/ppp_instance_private_proxy_unittest.cc',
         'proxy/ppp_instance_proxy_unittest.cc',
         'proxy/ppp_messaging_proxy_unittest.cc',
         'proxy/printing_resource_unittest.cc',
         'proxy/serialized_var_unittest.cc',
         'proxy/websocket_resource_unittest.cc',
         'shared_impl/resource_tracker_unittest.cc',
+        'shared_impl/time_conversion_unittest.cc',
         'shared_impl/tracked_callback_unittest.cc',
         'shared_impl/var_tracker_unittest.cc',
       ],
       'conditions': [
         [ 'os_posix == 1 and OS != "mac" and OS != "android" and OS != "ios"', {
           'conditions': [
             [ 'linux_use_tcmalloc == 1', {
               'dependencies': [
                 '../base/allocator/allocator.gyp:allocator',
               ],
@@ skipping 277 matching lines @@
       'dependencies': [
         'ppapi_example_skeleton',
         'ppapi.gyp:ppapi_cpp',
       ],
       'sources': [
         'examples/printing/printing.cc',
       ],
     },
   ],
 }