[app_installer] Refactor and add app_installer_unittests target.

build/all.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': {
     # A hook that can be overridden in other repositories to add additional
     # compilation targets to 'All'. Only used on Android.
     'android_app_targets%': [],
   },
@@ skipping 336 matching lines @@
                 '../chrome/chrome.gyp:interactive_ui_tests',
                 '../chrome/chrome.gyp:sync_integration_tests',
                 '../chrome/chrome.gyp:unit_tests',
                ],
             }],
           ],
         }],
         ['OS=="win"', {
           'dependencies': [
             '../chrome/chrome.gyp:app_installer',
+            '../chrome/chrome.gyp:app_installer_unittests',
             '../chrome/chrome.gyp:crash_service',
             '../chrome/chrome.gyp:installer_util_unittests',
             # ../chrome/test/mini_installer requires mini_installer.
             '../chrome/installer/mini_installer.gyp:mini_installer',
             '../chrome_elf/chrome_elf.gyp:chrome_elf_unittests',
             '../content/content_shell_and_tests.gyp:copy_test_netscape_plugin',
             '../courgette/courgette.gyp:courgette_unittests',
             '../sandbox/sandbox.gyp:sbox_integration_tests',
             '../sandbox/sandbox.gyp:sbox_unittests',
             '../sandbox/sandbox.gyp:sbox_validation_tests',
@@ skipping 807 matching lines @@
       ],  # targets
       'conditions': [
         ['branding=="Chrome"', {
           'targets': [
             {
               'target_name': 'chrome_official_builder',
               'type': 'none',
               'dependencies': [
                 '../base/base.gyp:base_unittests',
                 '../chrome/chrome.gyp:app_installer',
+                '../chrome/chrome.gyp:app_installer_unittests',
                 '../chrome/chrome.gyp:browser_tests',
                 '../chrome/chrome.gyp:sync_integration_tests',
                 '../chrome/chrome.gyp:crash_service',
                 '../chrome/chrome.gyp:gcapi_dll',
                 '../chrome/chrome.gyp:pack_policy_templates',
                 '../chrome/installer/mini_installer.gyp:mini_installer',
                 '../cloud_print/cloud_print.gyp:cloud_print',
                 '../courgette/courgette.gyp:courgette',
                 '../courgette/courgette.gyp:courgette64',
                 '../ipc/ipc.gyp:ipc_tests',
@@ skipping 168 matching lines @@
           'dependencies': [
             '../ui/views/examples/examples.gyp:views_examples_with_content_exe',
             '../ui/views/views.gyp:views',
             '../ui/views/views.gyp:views_unittests',
           ],
         },  # target_name: macviews_builder
       ],  # targets
     }],  # os=='mac' and toolkit_views==1
   ],  # conditions
 }