Switching NaCl IRT to be built inside the chrome build.

chrome/build_nacl_irt.py

Index: chrome/build_nacl_irt.py
===================================================================
--- chrome/build_nacl_irt.py	(revision 97950)
+++ chrome/build_nacl_irt.py	(working copy)
@@ -60,6 +60,20 @@
                          stdout=subprocess.PIPE,
                          stderr=subprocess.PIPE)
     (p_stdout, p_stderr) = p.communicate()
+    # If things fail on windows, try running --help, if that fails,

[noelallen_use_chromium, 2011/08/24 00:21:38]

How about returning a specific error code from scons, since this code already
assumes that if scons can't find it, it must not be a builder.
(TODO is OK)

+    # emit this script as an input (to satiate gyp), and assume we're being
+    # run on a test only bot.
+    if p.returncode != 0 and sys.platform == 'win32':
+      cmd = [sys.executable, 'scons.py', '--help']
+      p = subprocess.Popen(cmd, cwd=NACL_DIR,
+                           stdout=subprocess.PIPE,
+                           stderr=subprocess.PIPE)
+      (p_stdout, p_stderr) = p.communicate()
+      if p.returncode !=0:
+        # If scons can't even run, emit just this script as an input.
+        # See comment above this one.
+        print RelativePath(__file__, SCRIPT_DIR)
+        return
     if p.returncode != 0:
       sys.exit(2)
     # Extract unique inputs.