The Chrome Remote Desktop installation for Windows can be build by bots now.

build/common.gypi

 # 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.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   # Variables expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 284 matching lines @@
       # dependencies verified. All the tests targets have the '_run' suffix,
       # e.g. base_unittests_run runs the target base_unittests. The test target
       # always calls tools/isolate/isolate.py. See the script's --help for more
       # information and the valid --mode values. Meant to be overriden with
       # GYP_DEFINES.
       'tests_run%': 'check',
 
        # Force rlz to use chrome's networking stack.
       'force_rlz_use_chrome_net%': 1,
 
+      'platformsdk_path%': '<(DEPTH)/third_party/platformsdk_win7/files',
+      'wix_path%': '<(DEPTH)/third_party/wix',
+
       'conditions': [
         # TODO(epoger): Figure out how to set use_skia=1 for Mac outside of
         # the 'conditions' clause.  Initial attempts resulted in chromium and
         # webkit disagreeing on its setting.
         ['OS=="mac"', {
           'use_skia%': 1,
           # Mac uses clang by default, so turn on the plugin as well.
           'clang_use_chrome_plugins%': 1,
         }, {
           'use_skia%': 1,
@@ skipping 201 matching lines @@
     'enable_session_service%': '<(enable_session_service)',
     'enable_themes%': '<(enable_themes)',
     'enable_background%': '<(enable_background)',
     'linux_use_gold_binary%': '<(linux_use_gold_binary)',
     'linux_use_gold_flags%': '<(linux_use_gold_flags)',
     'use_canvas_skia%': '<(use_canvas_skia)',
     'tests_run%': '<(tests_run)',
     'enable_automation%': '<(enable_automation)',
     'force_rlz_use_chrome_net%': '<(force_rlz_use_chrome_net)',
     'enable_task_manager%': '<(enable_task_manager)',
+    'platformsdk_path%': '<(platformsdk_path)',
+    'wix_path%': '<(wix_path)',
 
     # Use system yasm instead of bundled one.
     'use_system_yasm%': 0,
 
     # Default to enabled PIE; this is important for ASLR but we may need to be
     # able to turn it off for various reasons.
     'linux_disable_pie%': 0,
 
     # The release channel that this build targets. This is used to restrict
     # channel-specific build options, like which installer packages to create.
@@ skipping 208 matching lines @@
 
     # Disable Dart by default.
     'enable_dart%': 0,
 
     # The desired version of Windows SDK can be set in ~/.gyp/include.gypi.
     'msbuild_toolset%': '',
 
     # Native Client is enabled by default.
     'disable_nacl%': 0,
 
+    'platformsdk_exists': '<!(python <(DEPTH)/build/dir_exists.py <(platformsdk_path))',
+    'wix_exists': '<!(python <(DEPTH)/build/dir_exists.py <(wix_path))',
+
     'conditions': [
       ['os_posix==1 and OS!="mac" and OS!="android"', {
         # This will set gcc_version to XY if you are running gcc X.Y.*.
         # This is used to tweak build flags for gcc 4.4.
         'gcc_version%': '<!(python <(DEPTH)/build/compiler_version.py)',
         # Figure out the python architecture to decide if we build pyauto.
         'python_arch%': '<!(<(DEPTH)/build/linux/python_arch.sh <(sysroot)/usr/<(system_libdir)/libpython<(python_ver).so.1.0)',
         'conditions': [
           ['branding=="Chrome"', {
             'linux_breakpad%': 1,
@@ skipping 2208 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }