Add Chromium-style TimeDelta, Time and TimeTicks classes, and a new ElapsedTimer class.

tools/gyp/v8.gyp

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 482 matching lines @@
         '../../src/string-search.cc',
         '../../src/string-search.h',
         '../../src/string-stream.cc',
         '../../src/string-stream.h',
         '../../src/strtod.cc',
         '../../src/strtod.h',
         '../../src/stub-cache.cc',
         '../../src/stub-cache.h',
         '../../src/sweeper-thread.h',
         '../../src/sweeper-thread.cc',
+        '../../src/time/elapsed-timer.h',
+        '../../src/time/time.cc',
+        '../../src/time/time.h',
         '../../src/token.cc',
         '../../src/token.h',
         '../../src/transitions-inl.h',
         '../../src/transitions.cc',
         '../../src/transitions.h',
         '../../src/type-info.cc',
         '../../src/type-info.h',
         '../../src/types.cc',
         '../../src/types.h',
         '../../src/typing.cc',
@@ skipping 168 matching lines @@
         }],
         ['OS=="linux"', {
             'link_settings': {
               'conditions': [
                 ['v8_compress_startup_data=="bz2"', {
                   'libraries': [
                     '-lbz2',
                   ]
                 }],
               ],
+              'libraries': [
+                '-lrt'
+              ]
             },
             'sources': [  ### gcmole(os:linux) ###
               '../../src/platform-linux.cc',
               '../../src/platform-posix.cc'
             ],
           }
         ],
         ['OS=="android"', {
             'defines': [
               'CAN_USE_VFP_INSTRUCTIONS',
             ],
             'sources': [
-              '../../src/platform-posix.cc',
+              '../../src/platform-posix.cc'
             ],
             'conditions': [
               ['host_os=="mac"', {
                 'target_conditions': [
                   ['_toolset=="host"', {
                     'sources': [
                       '../../src/platform-macos.cc'
                     ]
                   }, {
                     'sources': [
@@ skipping 42 matching lines @@
             ],
           }
         ],
         ['OS=="solaris"', {
             'link_settings': {
               'libraries': [
                 '-lsocket -lnsl',
             ]},
             'sources': [
               '../../src/platform-solaris.cc',
-              '../../src/platform-posix.cc',
+              '../../src/platform-posix.cc'
             ],
           }
         ],
         ['OS=="mac"', {
           'sources': [
             '../../src/platform-macos.cc',
             '../../src/platform-posix.cc'
           ]},
         ],
         ['OS=="win"', {
           'variables': {
             'gyp_generators': '<!(echo $GYP_GENERATORS)',
           },
           'conditions': [
             ['gyp_generators=="make"', {
               'variables': {
                 'build_env': '<!(uname -o)',
               },
               'conditions': [
                 ['build_env=="Cygwin"', {
                   'sources': [
                     '../../src/platform-cygwin.cc',
-                    '../../src/platform-posix.cc',
+                    '../../src/platform-posix.cc'
                   ],
                 }, {
                   'sources': [
                     '../../src/platform-win32.cc',
-                    '../../src/win32-math.h',
                     '../../src/win32-math.cc',
+                    '../../src/win32-math.h'
                   ],
                 }],
               ],
               'link_settings':  {
                 'libraries': [ '-lwinmm', '-lws2_32' ],
               },
             }, {
               'sources': [
                 '../../src/platform-win32.cc',
-                '../../src/win32-math.h',
                 '../../src/win32-math.cc',
+                '../../src/win32-math.h'
               ],
               'msvs_disabled_warnings': [4351, 4355, 4800],
               'link_settings':  {
                 'libraries': [ '-lwinmm.lib', '-lws2_32.lib' ],
               },
             }],
           ],
         }],
         ['component=="shared_library"', {
           'defines': [
@@ skipping 216 matching lines @@
         }],
         ['v8_compress_startup_data=="bz2"', {
           'libraries': [
             '-lbz2',
           ]
         }],
       ],
     },
   ],
 }