ninja win: Add support for 'CallingConvention'

test/win/compiler-flags/calling-convention.gyp

Index: test/win/compiler-flags/calling-convention.gyp
diff --git a/test/win/compiler-flags/calling-convention.gyp b/test/win/compiler-flags/calling-convention.gyp
new file mode 100644
index 0000000000000000000000000000000000000000..e2cdd772a46d71238f161f34dba53a163da85728
--- /dev/null
+++ b/test/win/compiler-flags/calling-convention.gyp
@@ -0,0 +1,47 @@
+# Copyright (c) 2014 Google Inc. 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': 'test_cdecl',
+      'type': 'loadable_module',
+      'msvs_settings': {
+        'VCCLCompilerTool': {
+          'CallingConvention': 0,
+        },
+      },
+      'sources': [
+        'calling-convention.cc',
+        'calling-convention-cdecl.def',
+      ],
+    },
+    {
+      'target_name': 'test_fastcall',
+      'type': 'loadable_module',
+      'msvs_settings': {
+        'VCCLCompilerTool': {
+          'CallingConvention': 1,
+        },
+      },
+      'sources': [
+        'calling-convention.cc',
+        'calling-convention-fastcall.def',
+      ],
+    },
+    {
+      'target_name': 'test_stdcall',
+      'type': 'loadable_module',
+      'msvs_settings': {
+        'VCCLCompilerTool': {
+          'CallingConvention': 2,
+        },
+      },
+      'sources': [
+        'calling-convention.cc',
+        'calling-convention-stdcall.def',
+      ],
+    },
+  ]
+}