Stack sampling profiler: handle unloaded and unloading modules

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 748 matching lines @@
               'dependencies': [
                 'allocator/allocator.gyp:allocator',
               ],
             }],
           ]},
         ],
         [ 'OS == "win" and target_arch == "x64"', {
           'sources': [
             'profiler/win32_stack_frame_unwinder_unittest.cc',
           ],
+          'dependencies': [
+            'base_profiler_test_support_library',
+          ],
         }],
         ['OS == "win"', {
           'sources!': [
             'file_descriptor_shuffle_unittest.cc',
             'files/dir_reader_posix_unittest.cc',
             'message_loop/message_pump_libevent_unittest.cc',
             'threading/worker_pool_posix_unittest.cc',
           ],
           # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
           'msvs_disabled_warnings': [
@@ skipping 485 matching lines @@
           'defines': [
             '<@(nacl_win64_defines)',
           ],
           # TODO(rvargas): Bug 78117. Remove this.
           'msvs_disabled_warnings': [
             4244,
           ],
         },
       ],
     }],
+    ['OS == "win" and target_arch=="x64"', {
+      'targets': [
+        {
+          'target_name': 'base_profiler_test_support_library',
+          # Must be a shared library so that it can be unloaded during testing.
+          'type': 'shared_library',
+          'include_dirs': [
+            '..',
+          ],
+          'sources': [
+            'profiler/test_support_library.cc',
+          ],
+        },
+      ]
+    }],
     ['os_posix==1 and OS!="mac" and OS!="ios"', {
       'targets': [
         {
           'target_name': 'symbolize',
           'type': 'static_library',
           'toolsets': ['host', 'target'],
           'variables': {
             'chromium_code': 0,
           },
           'conditions': [
@@ skipping 393 matching lines @@
             '../build/isolate.gypi',
           ],
           'sources': [
             'base_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }