linux_aura: Implement most of DesktopScreenX11.

ui/ui.gyp

 # 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,
   },
   'includes': [
     'shell_dialogs.gypi',
@@ skipping 836 matching lines @@
         ['use_x11==1', {
           'all_dependent_settings': {
             'ldflags': [
               '-L<(PRODUCT_DIR)',
             ],
             'link_settings': {
               'libraries': [
                 '-lX11',
                 '-lXcursor',
                 '-lXrender',  # For XRender* function calls in x11_util.cc.
+                '-lXrandr',
               ],
             },
           },
           'link_settings': {
             'libraries': [
               '-lX11',
               '-lXcursor',
               '-lXrender',  # For XRender* function calls in x11_util.cc.
+              '-lXrandr',
             ],
           },
           'dependencies': [
             '../build/linux/system.gyp:x11',
             '../build/linux/system.gyp:xext',
             '../build/linux/system.gyp:xfixes',
           ],
         }, {  # use_x11==0
           'sources/': [
             ['exclude', 'events/keycodes/keyboard_code_conversion_x.*'],
@@ skipping 208 matching lines @@
               'xcode_settings': {
                 'GCC_SYMBOLS_PRIVATE_EXTERN': 'NO',
               },
             }],
           ],
         },
       ],
     }],
   ],
 }