Turns on use_mojo=1 for windows.

chrome/installer/mini_installer.gyp

 {
   'variables': {
     'version_py': '<(DEPTH)/build/util/version.py',
     'version_path': '../../chrome/VERSION',
     'lastchange_path': '<(DEPTH)/build/util/LASTCHANGE',
     # 'branding_dir' is set in the 'conditions' section at the bottom.
     'msvs_use_common_release': 0,
     'msvs_use_common_linker_extras': 0,
     'mini_installer_internal_deps%': 0,
     'mini_installer_official_deps%': 0,
@@ skipping 210 matching lines @@
                 }, { # else icu_use_data_file_flag != 0
                   'inputs': [
                     '<(PRODUCT_DIR)/icudtl.dat',
                   ],
                 }],
               ],
               'inputs': [
                 '<(create_installer_archive_py_path)',
                 '<(PRODUCT_DIR)/chrome.exe',
                 '<(PRODUCT_DIR)/chrome.dll',
+                '<(PRODUCT_DIR)/mojo_system.dll',

[grt (UTC plus 2), 2014/03/19 00:59:03]

is the intent here for mojo_system.dll to be included in the installer archive? 
should this be conditional on use_mojo==1? if not, will things break if someone
sets use_mojo=0?
you may need to make the same change in mini_installer.gypi, which i think it
used by syzygy toolchain.

[sky, 2014/03/19 15:04:10]

Yes, mojo_system.dll needs to be part of the install.
Good point. I had envisioned use_mojo as temporary until I straighten this out,
but you're right. While we have use_mojo I should honor it.
Done.

                 '<(PRODUCT_DIR)/nacl64.exe',
                 '<(PRODUCT_DIR)/ppGoogleNaClPluginChrome.dll',
                 '<(PRODUCT_DIR)/nacl_irt_x86_32.nexe',
                 '<(PRODUCT_DIR)/nacl_irt_x86_64.nexe',
                 '<(PRODUCT_DIR)/locales/en-US.pak',
               ],
               'outputs': [
                 # Also note that chrome.packed.7z is defined as an output in a
                 # conditional above.
                 'xxx2.out',
@@ skipping 67 matching lines @@
       'variables': {
          'branding_dir': '../app/theme/google_chrome',
       },
     }, { # else branding!="Chrome"
       'variables': {
          'branding_dir': '../app/theme/chromium',
       },
     }],
   ],
 }