Add compiler flags that prevent text relocations.

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,
     'package_name': 'chromium_testshell',
   },
   'includes': [
     'chrome_android_paks.gypi', # Included for the list of pak resources.
@@ skipping 30 matching lines @@
           'conditions': [
             [ 'OS=="android"', {
               'dependencies': [ '../tools/cygprofile/cygprofile.gyp:cygprofile', ],
             }],
           ],
         }],
         [ 'android_use_tcmalloc==1', {
           'dependencies': [
             '../base/allocator/allocator.gyp:allocator', ],
         }],
+        [ 'android_app_abi != "x86"', {
+          'ldflags': [
+            # Do not allow text relocations.
+            '-Wl,--fatal-warnings',

[Yaron, 2013/07/02 00:56:06]

Should be put this instead near werror in build/common.gypi? Actualy, why aren't
both definitions just in the general build/common.gypi so they apply to all
targets? Also, I don't see any other ports using this flag so I wonder if there
are some warnings perhaps while building official

+            '-Wl,--warn-shared-textrel',
+        ],
+        }],
       ],
     },
     {
       'target_name': 'chromium_testshell',
       'type': 'none',
       'dependencies': [
         '../media/media.gyp:media_java',
         'chrome.gyp:chrome_java',
         'chromium_testshell_paks',
         'libchromiumtestshell',
@@ skipping 92 matching lines @@
         {
           'destination': '<(chrome_android_pak_output_folder)',
           'files': [
             '<@(chrome_android_pak_input_resources)',
           ],
         }
       ],
     },
   ],
 }