Add support for MIDL include directories

pylib/gyp/msvs_emulation.py

 # Copyright (c) 2012 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.
 
 """
 This module helps emulate Visual Studio 2008 behavior on top of other
 build systems, primarily ninja.
 """
 
 import os
@@ skipping 300 matching lines @@
 
   def AdjustIncludeDirs(self, include_dirs, config):
     """Updates include_dirs to expand VS specific paths, and adds the system
     include dirs used for platform SDK and similar."""
     config = self._TargetConfig(config)
     includes = include_dirs + self.msvs_system_include_dirs[config]
     includes.extend(self._Setting(
       ('VCCLCompilerTool', 'AdditionalIncludeDirectories'), config, default=[]))
     return [self.ConvertVSMacros(p, config=config) for p in includes]
 
+  def AdjustMidlIncludeDirs(self, midl_include_dirs, config):
+    """Updates midl_include_dirs to expand VS specific paths, and adds any
+    AdditionalIncludeDirectories specified in VCMIDLTool."""
+    config = self._TargetConfig(config)
+    includes = midl_include_dirs + self._Setting(
+      ('VCMIDLTool', 'AdditionalIncludeDirectories'), config, default=[])
+    return [self.ConvertVSMacros(p, config=config) for p in includes]
+
   def GetComputedDefines(self, config):
     """Returns the set of defines that are injected to the defines list based
     on other VS settings."""
     config = self._TargetConfig(config)
     defines = []
     if self._ConfigAttrib(['CharacterSet'], config) == '1':
       defines.extend(('_UNICODE', 'UNICODE'))
     if self._ConfigAttrib(['CharacterSet'], config) == '2':
       defines.append('_MBCS')
     defines.extend(self._Setting(
@@ skipping 687 matching lines @@
 
   # To determine processor word size on Windows, in addition to checking
   # PROCESSOR_ARCHITECTURE (which reflects the word size of the current
   # process), it is also necessary to check PROCESSOR_ARCHITEW6432 (which
   # contains the actual word size of the system when running thru WOW64).
   if ('64' in os.environ.get('PROCESSOR_ARCHITECTURE', '') or
       '64' in os.environ.get('PROCESSOR_ARCHITEW6432', '')):
     default_variables['MSVS_OS_BITS'] = 64
   else:
     default_variables['MSVS_OS_BITS'] = 32