Move Extension Location and Type enums to Manifest, and move InstallWarning to its own file.

chrome/chrome_common.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'common',
       'type': 'static_library',
       'variables': {
@@ skipping 38 matching lines @@
         '<(DEPTH)/third_party/zlib/zlib.gyp:minizip',
         '<(DEPTH)/third_party/zlib/zlib.gyp:zlib',
         '<(DEPTH)/ui/ui.gyp:ui_resources',
         '<(DEPTH)/webkit/support/webkit_support.gyp:user_agent',
       ],
       'sources': [
         '../extensions/common/constants.cc',
         '../extensions/common/constants.h',
         '../extensions/common/error_utils.cc',
         '../extensions/common/error_utils.h',
+        '../extensions/common/install_warning.h',
+        '../extensions/common/install_warning.cc',
         '../extensions/common/url_pattern.cc',
         '../extensions/common/url_pattern.h',
         '../extensions/common/url_pattern_set.cc',
         '../extensions/common/url_pattern_set.h',
         'common/all_messages.h',
         'common/attrition_experiments.h',
         'common/auto_start_linux.cc',
         'common/auto_start_linux.h',
         'common/autofill/autocheckout_status.h',
         'common/autofill/web_element_descriptor.cc',
@@ skipping 608 matching lines @@
         'common/metrics/proto/user_action_event.proto',
       ],
       'variables': {
         'proto_in_dir': 'common/metrics/proto',
         'proto_out_dir': 'chrome/common/metrics/proto',
       },
       'includes': [ '../build/protoc.gypi' ],
     },
   ],
 }