win ninja: Refactor manifest generate and embed to be 1-pass

test/win/linker-flags/manifest-in-comment.cc

Index: test/win/linker-flags/manifest-in-comment.cc
diff --git a/test/win/linker-flags/manifest-in-comment.cc b/test/win/linker-flags/manifest-in-comment.cc
new file mode 100644
index 0000000000000000000000000000000000000000..ae54ae546290006d558fea9c342535819d697e15
--- /dev/null
+++ b/test/win/linker-flags/manifest-in-comment.cc
@@ -0,0 +1,13 @@
+// Copyright 2013 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.
+
+#pragma comment(linker,                                                  \
+                "\"/manifestdependency:type='Win32' "                    \
+                "name='Test.Research.SampleAssembly' version='6.0.0.0' " \
+                "processorArchitecture='X86' "                           \
+                "publicKeyToken='0000000000000000' language='*'\"")
+
+int main() {
+  return 0;
+}