Android: Allow compiling browser without Java UI

chrome/chrome_android.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.
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
       # GN: //chrome:chrome_android_core
@@ skipping 19 matching lines @@
       'sources': [
         'app/android/chrome_android_initializer.cc',
         'app/android/chrome_android_initializer.h',
         'app/android/chrome_jni_onload.cc',
         'app/android/chrome_jni_onload.h',
         'app/android/chrome_main_delegate_android.cc',
         'app/android/chrome_main_delegate_android.h',
         'app/chrome_main_delegate.cc',
         'app/chrome_main_delegate.h',
       ],
+      'conditions': [
+        ['android_java_ui==1', {
+          'all_dependent_settings': {
+            'defines': [ 'ANDROID_JAVA_UI=1']
+        }]
+      }],
       'link_settings': {
         'libraries': [
           '-landroid',
           '-ljnigraphics',
         ],
       },
     },
     {
       # GYP: //chrome/android:chrome_version_java
       'target_name': 'chrome_version_java',
@@ skipping 44 matching lines @@
             '-f', '<(branding_path)',
             '-e', 'CHANNEL=str.upper("<(android_channel)")',
             '<(template_input_path)',
             '<(output_path)',
           ],
         },
       ],
     },
   ],
 }