Gracefully handle child process death in out-of-process plugin loading.

build/common.gypi

 # Copyright (c) 2011 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.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   # Variables expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 1232 matching lines @@
             ],
           }],
           ['OS!="android"', {
             'sources/': [
               ['exclude', '_android(_unittest)?\\.cc$'],
               ['exclude', '(^|/)android/'],
             ],
           }],
           # We use "POSIX" to refer to all non-Windows operating systems.
           ['OS=="win"', {
-            'sources/': [ ['exclude', '_posix\\.(h|cc)$'] ],
+            'sources/': [ ['exclude', '_posix(_unittest)?\\.(h|cc)$'] ],
             # turn on warnings for signed/unsigned mismatch on chromium code.
             'msvs_settings': {
               'VCCLCompilerTool': {
                 'AdditionalOptions': ['/we4389'],
               },
             },
           }],
           ['OS=="win" and component=="shared_library"', {
             'msvs_disabled_warnings': [
               4251,  # class 'std::xx' needs to have dll-interface.
@@ skipping 1301 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }