Implementation of Platform class that exposes information about the machine and the OS.

runtime/bin/bin.gypi

Index: runtime/bin/bin.gypi
diff --git a/runtime/bin/bin.gypi b/runtime/bin/bin.gypi
index 483a804bb0e4c0ceeb4d29c7772115e61285b60d..6f56d5508d25c9e228e17727b3135e50617a78f7 100644
--- a/runtime/bin/bin.gypi
+++ b/runtime/bin/bin.gypi
@@ -29,6 +29,8 @@
         'input_stream.dart',
         'output_stream.dart',
         'string_stream.dart',
+        'platform.dart',
+        'platform_impl.dart',
         'process.dart',
         'process_impl.dart',
         'socket.dart',
@@ -94,6 +96,11 @@
         'fdutils_linux.cc',
         'fdutils_macos.cc',
         'globals.h',
+        'platform.cc',
+        'platform.h',
+        'platform_linux.cc',
+        'platform_macos.cc',
+        'platform_win.cc',
         'process.cc',
         'process.h',
         'process_linux.cc',
@@ -330,6 +337,11 @@
         'fdutils.h',
         'fdutils_linux.cc',
         'fdutils_macos.cc',
+        'platform.cc',
+        'platform.h',
+        'platform_linux.cc',
+        'platform_macos.cc',
+        'platform_win.cc',
         'process.cc',
         'process.h',
         'process_linux.cc',
@@ -364,6 +376,8 @@
         ['include', 'file.cc'],
         ['include', 'file.h'],
         ['include', 'file_test.cc'],
+        ['include', 'platform.cc'],
+        ['include', 'platform.h'],
         ['include', 'process.cc'],
         ['include', 'process.h'],
         ['include', 'socket.cc'],
@@ -378,6 +392,7 @@
           ['include', 'fdutils.h'],
           ['include', 'fdutils_linux.cc'],
           ['include', 'file_linux.cc'],
+          ['include', 'platform_linux.cc'],
           ['include', 'process_linux.cc'],
           ['include', 'socket_linux.cc'],
         ]}],
@@ -388,6 +403,7 @@
           ['include', 'fdutils.h'],
           ['include', 'fdutils_macos.cc'],
           ['include', 'file_macos.cc'],
+          ['include', 'platform_macos.cc'],
           ['include', 'process_macos.cc'],
           ['include', 'socket_macos.cc'],
         ]}],
@@ -396,6 +412,7 @@
           ['include', 'eventhandler_win.cc'],
           ['include', 'eventhandler_win.h'],
           ['include', 'file_win.cc'],
+          ['include', 'platform_win.cc'],
           ['include', 'process_win.cc'],
           ['include', 'socket_win.cc'],
         ]}],