Add missing dependencies.

content/content_tests.gypi

 # Copyright (c) 2013 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': {
     'layouttest_support_content_sources': [
       'public/test/layouttest_support.h',
       'public/test/nested_message_pump_android.cc',
       'public/test/nested_message_pump_android.h',
@@ skipping 1196 matching lines @@
             '../build/isolate.gypi',
           ],
           'sources': [
             'content_browsertests.isolate',
           ],
         },
         {
           'target_name': 'content_unittests_run',
           'type': 'none',
           'dependencies': [
+            '../third_party/mesa/mesa.gyp:osmesa',
             'content_unittests',
           ],
           'includes': [
             '../build/isolate.gypi',
           ],
           'sources': [
             'content_unittests.isolate',
           ],
           'conditions': [
             ['use_x11==1', {
@@ skipping 848 matching lines @@
           'includes': [
             '../build/java_apk.gypi',
             '../build/android/test_runner.gypi',
           ],
         },
         {
           # GN: //content/public/android:content_junit_tests
           'target_name': 'content_junit_tests',
           'type': 'none',
           'dependencies': [
-            'content.gyp:content_java',
             '../base/base.gyp:base_java',
             '../base/base.gyp:base_java_test_support',
             '../testing/android/junit/junit_test.gyp:junit_test_support',
+            '../third_party/mesa/mesa.gyp:osmesa',
+            'content.gyp:content_java',
           ],
           'variables': {
             'main_class': 'org.chromium.testing.local.JunitTestMain',
             'src_paths': [
               'public/android/junit/',
             ],
           },
           'includes': [
             '../build/host_jar.gypi',
           ],
         },
       ],
     }],
   ],
 }