Create separate extensions_common and extensions_browser GYP targets.

chrome/chrome_common.gypi

 # Copyright (c) 2013 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 23 matching lines @@
         '<(DEPTH)/base/base.gyp:base_static',
         '<(DEPTH)/chrome/chrome_resources.gyp:chrome_resources',
         '<(DEPTH)/chrome/chrome_resources.gyp:chrome_strings',
         '<(DEPTH)/chrome/chrome_resources.gyp:theme_resources',
         '<(DEPTH)/chrome/common_constants.gyp:common_constants',
         '<(DEPTH)/components/components.gyp:json_schema',
         '<(DEPTH)/components/components.gyp:policy_component',
         '<(DEPTH)/components/components.gyp:variations',
         '<(DEPTH)/components/components.gyp:visitedlink_common',
         '<(DEPTH)/content/content.gyp:content_common',
+        '<(DEPTH)/extensions/extensions.gyp:extensions_common',
         '<(DEPTH)/net/net.gyp:net',
         '<(DEPTH)/skia/skia.gyp:skia',
         '<(DEPTH)/third_party/icu/icu.gyp:icui18n',
         '<(DEPTH)/third_party/icu/icu.gyp:icuuc',
         '<(DEPTH)/third_party/libxml/libxml.gyp:libxml',
         '<(DEPTH)/third_party/sqlite/sqlite.gyp:sqlite',
         '<(DEPTH)/third_party/zlib/google/zip.gyp:zip',
         '<(DEPTH)/ui/ui.gyp:ui_resources',
         '<(DEPTH)/url/url.gyp:url_lib',
         '<(DEPTH)/webkit/common/user_agent/webkit_user_agent.gyp:user_agent',
       ],
       'sources': [
         '../apps/app_shim/app_shim_launch.h',
         '../apps/app_shim/app_shim_messages.h',
-        '../extensions/common/crx_file.cc',
-        '../extensions/common/crx_file.h',
-        '../extensions/common/draggable_region.cc',
-        '../extensions/common/draggable_region.h',
-        '../extensions/common/error_utils.cc',
-        '../extensions/common/error_utils.h',
-        '../extensions/common/event_filter.cc',
-        '../extensions/common/event_filter.h',
-        '../extensions/common/event_filtering_info.cc',
-        '../extensions/common/event_filtering_info.h',
-        '../extensions/common/event_matcher.cc',
-        '../extensions/common/event_matcher.h',
-        '../extensions/common/extension_paths.cc',
-        '../extensions/common/extension_paths.h',
-        '../extensions/common/extension_resource.cc',
-        '../extensions/common/extension_resource.h',
-        '../extensions/common/extension_urls.cc',
-        '../extensions/common/extension_urls.h',
-        '../extensions/common/extensions_client.cc',
-        '../extensions/common/extensions_client.h',
-        '../extensions/common/features/feature.cc',
-        '../extensions/common/features/feature.h',
-        '../extensions/common/features/feature_provider.cc',
-        '../extensions/common/features/feature_provider.h',
-        '../extensions/common/id_util.cc',
-        '../extensions/common/id_util.h',
-        '../extensions/common/install_warning.cc',
-        '../extensions/common/install_warning.h',
-        '../extensions/common/manifest.cc',
-        '../extensions/common/manifest.h',
-        '../extensions/common/manifest_constants.cc',
-        '../extensions/common/manifest_constants.h',
-        '../extensions/common/matcher/regex_set_matcher.cc',
-        '../extensions/common/matcher/regex_set_matcher.h',
-        '../extensions/common/matcher/string_pattern.cc',
-        '../extensions/common/matcher/string_pattern.h',
-        '../extensions/common/matcher/substring_set_matcher.cc',
-        '../extensions/common/matcher/substring_set_matcher.h',
-        '../extensions/common/matcher/url_matcher.cc',
-        '../extensions/common/matcher/url_matcher.h',
-        '../extensions/common/matcher/url_matcher_constants.cc',
-        '../extensions/common/matcher/url_matcher_constants.h',
-        '../extensions/common/matcher/url_matcher_factory.cc',
-        '../extensions/common/matcher/url_matcher_factory.h',
-        '../extensions/common/matcher/url_matcher_helpers.cc',
-        '../extensions/common/matcher/url_matcher_helpers.h',
-        '../extensions/common/one_shot_event.cc',
-        '../extensions/common/one_shot_event.h',
-        '../extensions/common/permissions/permissions_provider.h',
-        '../extensions/common/stack_frame.cc',
-        '../extensions/common/stack_frame.h',
-        '../extensions/common/switches.cc',
-        '../extensions/common/switches.h',
-        '../extensions/common/url_pattern.cc',
-        '../extensions/common/url_pattern.h',
-        '../extensions/common/url_pattern_set.cc',
-        '../extensions/common/url_pattern_set.h',
-        '../extensions/common/user_script.cc',
-        '../extensions/common/user_script.h',
-        '../extensions/common/view_type.cc',
-        '../extensions/common/view_type.h',
         'common/all_messages.h',
         'common/attrition_experiments.h',
         'common/auto_start_linux.cc',
         'common/auto_start_linux.h',
         'common/autocomplete_match_type.cc',
         'common/autocomplete_match_type.h',
         'common/automation_constants.cc',
         'common/automation_constants.h',
         'common/automation_messages.cc',
         'common/automation_messages.h',
@@ skipping 734 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' ],
     },
   ],
 }