Adds the ability for the renderer to create the mojo channel

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 241 matching lines @@
       'enable_hidpi%': '<(enable_hidpi)',
       'android_webview_build%': '<(android_webview_build)',
       'use_goma%': '<(use_goma)',
       'gomadir%': '<(gomadir)',
       'enable_app_list%': '<(enable_app_list)',
       'use_default_render_theme%': '<(use_default_render_theme)',
       'buildtype%': '<(buildtype)',
       'branding%': '<(branding)',
       'arm_version%': '<(arm_version)',
 
+      # Whether content/chrome is using mojo: see http://crbug.com/353602
+      'use_mojo%': 0,
+
       # Set to 1 to enable fast builds. Set to 2 for even faster builds
       # (it disables debug info for fastest compilation - only for use
       # on compile-only bots).
       'fastbuild%': 0,
 
       # Set to 1 to enable dcheck in release.
       'dcheck_always_on%': 0,
 
       # Set to 1 to make a build that disables unshipped tracing events.
       # Note: this setting is ignored if buildtype=="Official".
@@ skipping 617 matching lines @@
     'branding%': '<(branding)',
     'buildtype%': '<(buildtype)',
     'target_arch%': '<(target_arch)',
     'target_subarch%': '<(target_subarch)',
     'host_arch%': '<(host_arch)',
     'toolkit_views%': '<(toolkit_views)',
     'ui_compositor_image_transport%': '<(ui_compositor_image_transport)',
     'use_aura%': '<(use_aura)',
     'use_ash%': '<(use_ash)',
     'use_cras%': '<(use_cras)',
+    'use_mojo%': '<(use_mojo)',
     'use_openssl%': '<(use_openssl)',
     'use_nss%': '<(use_nss)',
     'use_udev%': '<(use_udev)',
     'os_bsd%': '<(os_bsd)',
     'os_posix%': '<(os_posix)',
     'use_dbus%': '<(use_dbus)',
     'use_glib%': '<(use_glib)',
     'use_pango%': '<(use_pango)',
     'use_cairo%': '<(use_cairo)',
     'use_ozone%': '<(use_ozone)',
@@ skipping 1296 matching lines @@
       }],
       ['use_ozone==1', {
         'defines': ['USE_OZONE=1'],
       }],
       ['use_default_render_theme==1', {
         'defines': ['USE_DEFAULT_RENDER_THEME=1'],
       }],
       ['use_libjpeg_turbo==1', {
         'defines': ['USE_LIBJPEG_TURBO=1'],
       }],
+      ['use_mojo==1', {
+        'defines': ['USE_MOJO=1'],
+      }],
       ['use_x11==1', {
         'defines': ['USE_X11=1'],
       }],
       ['use_clipboard_aurax11==1', {
         'defines': ['USE_CLIPBOARD_AURAX11=1'],
       }],
       ['enable_one_click_signin==1', {
         'defines': ['ENABLE_ONE_CLICK_SIGNIN'],
       }],
       ['toolkit_uses_gtk==1 and toolkit_views==0', {
@@ skipping 2833 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',
   },
 }