Browser watcher end-end-to-end .

components/browser_watcher.gypi

+# Copyright (c) 2014 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.
+
+{
+  'conditions': [
+  ['OS=="win"', {
+      'targets': [
+          {
+            # Chrome watcher is a standalone DLL that's used to monitor the
+            # browser's exit code to determine the cause of exit.
+            # It's hosted by chrome.exe in when it's passed --type=watcher
+            'target_name': 'browser_watcher',
+            # The DLL is named "chrome_watcher.dll".
+            'product_name': 'chrome_watcher',
+            'type': 'loadable_module',
+            'sources': [
+              'browser_watcher/watcher_main_win.cc',
+              'browser_watcher/watcher_main_win.h',
+            ],
+            'dependencies': [
+              'browser_watcher_lib',
+              '../base/base.gyp:base',
+              '../chrome/common_constants.gyp:common_constants',
+            ],
+          },
+          {
+            'target_name': 'browser_watcher_lib',
+            'type': 'static_library',
+            'sources': [
+              'browser_watcher/watcher_win.cc',
+              'browser_watcher/watcher_win.h',
+            ],
+            'dependencies': [
+              '../base/base.gyp:base',
+            ],
+          },
+          {
+            # Users of the watcher link this target.
+            'target_name': 'browser_watcher_client',
+            'type': 'static_library',
+            'sources': [
+              'browser_watcher/watcher_client_win.cc',
+              'browser_watcher/watcher_client_win.h',
+              'browser_watcher/watcher_metrics_provider_win.cc',
+              'browser_watcher/watcher_metrics_provider_win.h',
+            ],
+            'dependencies': [
+              'browser_watcher',
+              '../base/base.gyp:base',
+            ],
+          },
+        ],
+      }
+    ],
+  ],
+}