linux: enable PIE (ASLR) for chrome executable

chrome/chrome_exe.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.
 
 {
   'target_defaults': {
     'variables': {
       'chrome_exe_target': 0,
     },
     'target_conditions': [
@@ skipping 178 matching lines @@
           ],
           'conditions': [
             ['linux_use_tcmalloc==1', {
                 'dependencies': [
                   '<(allocator_target)',
                 ],
               },
             ],
             # TODO(rkc): Remove this once we have a fix for remote gdb
             # and are able to correctly get section header offsets for
             # pie executables. Currently -pie breaks remote debugging.

[raymes, 2011/05/12 21:25:52]

Lets remove this TODO then?

             ['disable_pie==1', {
               'ldflags' : ['-nopie'],
+            }, {
+              'ldflags' : ['-pie'],
             }],
             ['use_system_xdg_utils==0', {
               'copies': [
                 {
                   'destination': '<(PRODUCT_DIR)',
                   'files': ['tools/build/linux/chrome-wrapper',
                             '../third_party/xdg-utils/scripts/xdg-mime',
                             '../third_party/xdg-utils/scripts/xdg-settings',
                             ],
                   # The wrapper script above may need to generate a .desktop
@@ skipping 316 matching lines @@
           'configurations': {
             'Common_Base': {
               'msvs_target_platform': 'x64',
             },
           },
         },
       ],
     }],
   ],
 }