[VS Addin] Don't fail installation if win32 platform is missing.

visual_studio/NativeClientVSAddIn/InstallerResources/create_ppapi_platform.py

 #!/usr/bin/env python
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """ This script creates the PPAPI project settings template.
 
 For copyright reasons, we should not directly distribute the PPAPI template
 because it is nearly a clone of the Win32 template which is Copyrighted.
 Instead, this script copies the existing Win32 template from the user's system
@@ skipping 160 matching lines @@
 
 
   # Note 1033 is code for the english language.
   ui_xml_dir = os.path.join(os.path.dirname(install_dir), '1033')
 
   win32_dir = os.path.join(install_dir, 'Win32')
   ppapi_dir = os.path.join(install_dir, PEPPER_PLATFORM_NAME)
   patch_dir = os.path.join(SCRIPT_DIR, 'PPAPI_Patch')
 
   if not os.path.exists(win32_dir):
-    raise Error('Win32 MSBuild directory not found: %s' % win32_dir)
+    print 'Win32 MSBuild directory not found: %s' % win32_dir
+    print 'Skipping PPAPI platform install.'
+    return
 
   print "Cloning Win32 platform from: %s"  % win32_dir
 
   for root, dirs, files in os.walk(win32_dir):
     root = root.replace(win32_dir, '')[1:]
 
     if not os.path.exists(os.path.join(ppapi_dir, root)):
       os.makedirs(os.path.join(ppapi_dir, root))
 
     for filename in files:
@@ skipping 62 matching lines @@
     CreatePPAPI(options.msbuild_path)
 
   except Error as e:
     sys.stderr.write("error: %s\n" % e)
     return 1
 
   return 0
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))