Linux: move hardcoded paths to GYP variables.

chrome/chrome.gyp

 # Copyright (c) 2009 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,
     # Define the common dependencies that contain all the actual
     # Chromium functionality.  This list gets pulled in below by
     # the link of the actual chrome (or chromium) executable on
@@ skipping 1828 matching lines @@
                 # breakpad_linux.cc wants file_version_info_linux.h
                 '<(SHARED_INTERMEDIATE_DIR)',
               ],
             }, {
               'sources': [
                 'browser/renderer_host/render_crash_handler_host_linux_stub.cc',
                 'app/breakpad_linux_stub.cc',
                 'app/breakpad_linux.h',
               ],
             }],
+            ['linux_sandbox_path!=""', {
+              'defines': [
+                'LINUX_SANDBOX_PATH="<(linux_sandbox_path)"'
+              ],
+            }],
           ],
         }],
         ['OS=="linux" and toolkit_views==0', {
           'sources!': [
             'browser/bookmarks/bookmark_drop_info.cc',
           ],
         }],
         ['OS=="mac"', {
           'sources!': [
             'browser/automation/automation_provider_list_generic.cc',
@@ skipping 3162 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],
   ],  # 'conditions'
 }