x11: Move X event handling out of the message-pump.

ui/events/events.gyp

 # Copyright 2013 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 123 matching lines @@
         'ozone/evdev/key_event_converter_evdev.h',
         'ozone/evdev/touch_event_converter_evdev.cc',
         'ozone/evdev/touch_event_converter_evdev.h',
         'ozone/event_factory_ozone.cc',
         'ozone/event_factory_ozone.h',
         'ozone/events_ozone.cc',
         'platform/platform_event_dispatcher.h',
         'platform/platform_event_observer.h',
         'platform/platform_event_source.cc',
         'platform/platform_event_source.h',
+        'platform/platform_event_source_stub.cc',
         'platform/platform_event_types.h',
         'platform/scoped_event_dispatcher.cc',
         'platform/scoped_event_dispatcher.h',
         'platform/x11/x11_event_source.cc',
         'platform/x11/x11_event_source.h',
         'win/events_win.cc',
         'x/events_x.cc',
       ],
       'conditions': [
         # We explicitly enumerate the platforms we _do_ provide native cracking
         # for here.
         ['OS=="win" or use_x11==1 or use_ozone==1', {
           'sources!': [
             'events_stub.cc',
           ],
         }],
         ['use_x11==1', {
+          'sources!': [
+            'platform/platform_event_source_stub.cc',
+          ],
           'dependencies': [
             '<(DEPTH)/build/linux/system.gyp:x11',
           ],
         }],
         ['use_glib==1', {
           'dependencies': [
             '../../build/linux/system.gyp:glib',
           ],
         }],
         ['use_ozone_evdev==1', {
@@ skipping 172 matching lines @@
           'variables': {
             'test_suite_name': 'events_unittests',
             'input_shlib_path': '<(SHARED_LIB_DIR)/<(SHARED_LIB_PREFIX)events_unittests<(SHARED_LIB_SUFFIX)',
           },
           'includes': [ '../../build/apk_test.gypi' ],
         },
       ],
     }],
   ],
 }