Add mesa dependency to target chrome.

chrome/chrome_exe.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.
 
 {
   'targets': [
     {
       'target_name': 'chrome',
       'type': 'none',
-      'dependencies': [ 'chrome_initial', ],
+      'dependencies': [
+        'chrome_initial',
+        '../third_party/mesa/mesa.gyp:osmesa',
+      ],
       'conditions': [
         ['OS=="linux" and clang_type_profiler==1', {
           'dependencies!': [
             '<(DEPTH)/base/allocator/allocator.gyp:type_profiler',
           ],
         }],
         ['OS == "win"', {
           'actions': [
             {
               'variables': {
@@ skipping 643 matching lines @@
               'dependencies': [
                 'chrome_nacl_win64',
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }