Adding Wayland message loop and gyp build deps

build/common.gypi

 # Copyright (c) 2011 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 22 matching lines @@
           'toolkit_uses_pure_views%': 0,
 
           # Disable touch support by default.
           'touchui%': 0,
 
           # Disable webui certificate viewer until it is complete.
           'webui_certificate_viewer%': 0,
 
           # Whether the compositor is enabled on views.
           'views_compositor%': 0,
+
+          # Whether to build for Wayland display server
+          'use_wayland%': 0,
         },
         # Copy conditionally-set variables out one scope.
         'chromeos%': '<(chromeos)',
         'toolkit_uses_pure_views%': '<(toolkit_uses_pure_views)',
         'touchui%': '<(touchui)',
         'webui_certificate_viewer%': '<(webui_certificate_viewer)',
         'views_compositor%': '<(views_compositor)',
+        'use_wayland%': '<(use_wayland)',

[Evan Martin, 2011/07/21 16:44:21]

I believe all of these nested use_foobars are not necessary, and were perhaps
cargo-culted into the current state.  Perhaps try deleting this change, L43-45,
and then just put the default value of 0 down at L97 along with the comment.

If that doesn't work, it wouldn't surprise me (for complicated reasons), but I
think it ought to.

 
         # Compute the architecture that we're building on.
         'conditions': [
           [ 'OS=="win" or OS=="mac"', {
             'host_arch%': 'ia32',
           }, {
             # This handles the Unix platforms for which there is some support.
             # Anything else gets passed through, which probably won't work very
             # well; such hosts should pass an explicit target_arch to gyp.
             'host_arch%':
@@ skipping 23 matching lines @@
       },
 
       # Copy conditionally-set variables out one scope.
       'chromeos%': '<(chromeos)',
       'touchui%': '<(touchui)',
       'webui_certificate_viewer%': '<(webui_certificate_viewer)',
       'host_arch%': '<(host_arch)',
       'toolkit_views%': '<(toolkit_views)',
       'toolkit_uses_pure_views%': '<(toolkit_uses_pure_views)',
       'views_compositor%': '<(views_compositor)',
+      'use_wayland%': '<(use_wayland)',
 
       # We used to provide a variable for changing how libraries were built.
       # This variable remains until we can clean up all the users.
       # This needs to be one nested variables dict in so that dependent
       # gyp files can make use of it in their outer variables.  (Yikes!)
       # http://code.google.com/p/chromium/issues/detail?id=83308
       'library%': 'static_library',
 
       # Override branding to select the desired branding flavor.
       'branding%': 'Chromium',
@@ skipping 101 matching lines @@
           'os_posix%': 0,
         }, {
           'os_posix%': 1,
         }],
 
         # Flags to use Gtk and X11 on non-Mac POSIX platforms
         ['OS=="win" or OS=="mac"', {
           'toolkit_uses_gtk%': 0,
           'use_x11%': 0,
         }, {
+          # TODO Wayland build should have these disabled, but currently
+          # GTK and X is too spread and it's hard to completely remove
+          # every dependency.

[Evan Martin, 2011/07/21 16:44:21]

Can you elaborate on this comment?  I don't know what "too spread" means here.

           'toolkit_uses_gtk%': 1,
           'use_x11%': 1,
         }],
 
         # A flag to enable or disable our compile-time dependency
         # on gnome-keyring. If that dependency is disabled, no gnome-keyring
         # support will be available. This option is useful
         # for Linux distributions.
         ['chromeos==1', {
           'use_gnome_keyring%': 0,
@@ skipping 60 matching lines @@
     'use_titlecase_in_grd_files%': '<(use_titlecase_in_grd_files)',
     'use_third_party_translations%': '<(use_third_party_translations)',
     'remoting%': '<(remoting)',
     'enable_webrtc%': '<(enable_webrtc)',
     'p2p_apis%': '<(p2p_apis)',
     'configuration_policy%': '<(configuration_policy)',
     'safe_browsing%': '<(safe_browsing)',
     'clang_use_chrome_plugins%': '<(clang_use_chrome_plugins)',
     'enable_register_protocol_handler%': '<(enable_register_protocol_handler)',
     'enable_smooth_scrolling%': '<(enable_smooth_scrolling)',
+    'use_wayland%': '<(use_wayland)',
 
     # The release channel that this build targets. This is used to restrict
     # channel-specific build options, like which installer packages to create.
     # The default is 'all', which does no channel-specific filtering.
     'channel%': 'all',
 
     # Override chromium_mac_pch and set it to 0 to suppress the use of
     # precompiled headers on the Mac.  Prefix header injection may still be
     # used, but prefix headers will not be precompiled.  This is useful when
     # using distcc to distribute a build to compile slaves that don't
@@ skipping 414 matching lines @@
       }],
       ['views_compositor==1', {
         'defines': ['VIEWS_COMPOSITOR=1'],
       }],
       ['chromeos==1', {
         'defines': ['OS_CHROMEOS=1'],
       }],
       ['touchui==1', {
         'defines': ['TOUCH_UI=1'],
       }],
+      ['use_wayland==1', {
+        'defines': ['USE_WAYLAND=1', 'WL_EGL_PLATFORM=1'],
+      }],
       ['file_manager_extension==1', {
         'defines': ['FILE_MANAGER_EXTENSION=1'],
       }],
       ['profiling==1', {
         'defines': ['ENABLE_PROFILING=1'],
       }],
       ['remoting==1', {
         'defines': ['ENABLE_REMOTING=1'],
       }],
       ['p2p_apis==1', {
@@ skipping 1133 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',
   },
 }