Implement basic stack traces on Android and reenable unit tests.

base/base.gyp

 # 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,
   },
   'includes': [
     '../build/win_precompile.gypi',
@@ skipping 114 matching lines @@
               ],
             }],
             ['target_arch == "mipsel"', {
               'sources/': [
                 ['include', '^atomicops_internals_mips_gcc\\.cc$'],
               ],
             }],
           ],
           'dependencies': [
             'base_jni_headers',
-            'symbolize',
             '../third_party/ashmem/ashmem.gyp:ashmem',
           ],
           'include_dirs': [
             '<(SHARED_INTERMEDIATE_DIR)/base',
           ],
           'link_settings': {
             'libraries': [
               '-llog',
             ],
           },
-          'defines': [
-            'USE_SYMBOLIZE',
-          ],
           'sources!': [
             'debug/stack_trace_posix.cc',
           ],
           'includes': [
             '../build/android/cpufeatures.gypi',
           ],
         }],
         ['OS == "android" and _toolset == "target" and android_webview_build == 0', {
           'dependencies': [
             'base_java',
@@ skipping 502 matching lines @@
         '../testing/gtest.gyp:gtest',
         '../third_party/icu/icu.gyp:icui18n',
         '../third_party/icu/icu.gyp:icuuc',
       ],
       'includes': ['../build/nocompile.gypi'],
       'variables': {
          # TODO(ajwong): Is there a way to autodetect this?
         'module_dir': 'base'
       },
       'conditions': [
-        ['use_glib==1 or (OS == "android" and _toolset == "target")', {
+        ['use_glib==1', {
           'defines': [
             'USE_SYMBOLIZE',
           ],
         }],
         ['OS == "android"', {
           'dependencies': [
             'android/jni_generator/jni_generator.gyp:jni_generator_tests',
           ],
           'conditions': [
             ['gtest_target_type == "shared_library"', {
               'dependencies': [
                 '../testing/android/native_test.gyp:native_test_native_code',
               ],
             }],
           ],
-          'sources!': [
-            # Broken on Android, and already disabled there.
-            'debug/stack_trace_unittest.cc',
-          ],
         }],
         ['OS == "ios" and _toolset != "host"', {
           'sources/': [
             # Only test the iOS-meaningful portion of process_utils.
             ['exclude', '^process_util_unittest\\.cc$'],
             ['exclude', '^process/memory_unittest'],
             ['include', '^process_util_unittest_ios\\.cc$'],
             # Requires spawning processes.
             ['exclude', '^metrics/stats_table_unittest\\.cc$'],
             # iOS does not use message_pump_libevent.
@@ skipping 610 matching lines @@
             'base_unittests.isolate',
           ],
           'sources': [
             'base_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }