Reland^2 "Add Chromium-style TimeDelta, Time and TimeTicks classes, and a new ElapsedTimer class."

tools/gyp/v8.gyp

Index: tools/gyp/v8.gyp
diff --git a/tools/gyp/v8.gyp b/tools/gyp/v8.gyp
index eefd142b7042040d7b6f298e37b8e4eeff57e0ac..708defed9bea6bfbd35f53b4c2722b619426d671 100644
--- a/tools/gyp/v8.gyp
+++ b/tools/gyp/v8.gyp
@@ -436,6 +436,9 @@
         '../../src/optimizing-compiler-thread.cc',
         '../../src/parser.cc',
         '../../src/parser.h',
+        '../../src/platform/elapsed-timer.h',
+        '../../src/platform/time.cc',
+        '../../src/platform/time.h',
         '../../src/platform-posix.h',
         '../../src/platform.h',
         '../../src/preparse-data-format.h',
@@ -688,6 +691,9 @@
                   ]
                 }],
               ],
+              'libraries': [
+                '-lrt'
+              ]
             },
             'sources': [  ### gcmole(os:linux) ###
               '../../src/platform-linux.cc',
@@ -700,7 +706,7 @@
               'CAN_USE_VFP_INSTRUCTIONS',
             ],
             'sources': [
-              '../../src/platform-posix.cc',
+              '../../src/platform-posix.cc'
             ],
             'conditions': [
               ['host_os=="mac"', {
@@ -716,6 +722,15 @@
                   }],
                 ],
               }, {
+                'link_settings': {
+                  'target_conditions': [
+                    ['_toolset=="host"', {
+                      'libraries': [
+                        '-lrt'
+                      ]
+                    }]
+                  ]
+                },
                 'sources': [
                   '../../src/platform-linux.cc'
                 ]
@@ -763,7 +778,7 @@
             ]},
             'sources': [
               '../../src/platform-solaris.cc',
-              '../../src/platform-posix.cc',
+              '../../src/platform-posix.cc'
             ],
           }
         ],
@@ -786,13 +801,13 @@
                 ['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'
                   ],
                 }],
               ],
@@ -802,8 +817,8 @@
             }, {
               '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':  {