Enable building with VTune support on Windows.

runtime/vm/vm.gypi

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 {
   'variables': {
     'builtin_in_cc_file': '../bin/builtin_in.cc',
     'corelib_cc_file': '<(SHARED_INTERMEDIATE_DIR)/corelib_gen.cc',
     'corelib_patch_cc_file': '<(SHARED_INTERMEDIATE_DIR)/corelib_patch_gen.cc',
     'collection_cc_file': '<(SHARED_INTERMEDIATE_DIR)/collection_gen.cc',
@@ skipping 40 matching lines @@
               '-lpthread',
               '-lrt',
             ],
           },
         }],
         ['OS=="win"', {
           'sources/' : [
             ['exclude', 'gdbjit.cc'],
           ],
        }],
-       ['dart_vtune_support == 0', {
+       ['dart_vtune_support==0', {
           'sources/' : [
             ['exclude', 'vtune\\.(cc|h)$'],
           ],
        }],
-       ['OS=="linux" and dart_vtune_support == 1', {
-          # Link in libjitprofiling.a.
-          'cflags': [
-            '-DDART_VTUNE_SUPPORT',
-            '-I<(dart_vtune_root)/include',
-          ],
+       ['dart_vtune_support==1', {
+          'include_dirs': ['<(dart_vtune_root)/include'],
+          'defines': ['DART_VTUNE_SUPPORT'],
           'link_settings': {
-            'libraries': [
-              '-ljitprofiling',
+            'conditions': [
+              ['OS=="linux"', {
+                 'libraries': ['-ljitprofiling'],
+              }],
+              ['OS=="win"', {
+                 'libraries': ['-ljitprofiling.lib'],
+              }],
             ],
           },
         }]],
     },
     {
       'target_name': 'libdart_lib_withcore',
       'type': 'static_library',
       'dependencies': [
         'generate_corelib_cc_file',
         'generate_corelib_patch_cc_file',
@@ skipping 603 matching lines @@
             '--include', 'INTENTIONALLY_LEFT_BLANK',
             '--var_name', 'INTENTIONALLY_LEFT_BLANK_TOO',
             '<(snapshot_test_dart_file)',
           ],
           'message': 'Generating ''<(snapshot_test_dat_file)'' file.'
         },
       ]
     },
   ]
 }