Android: exclude dead code from android build

chrome/chrome_browser_extensions.gypi

Index: chrome/chrome_browser_extensions.gypi
diff --git a/chrome/chrome_browser_extensions.gypi b/chrome/chrome_browser_extensions.gypi
index 82fb593df02e34e7e1d59c8cb41a298bc7990e99..5e65f4c9a0a0d0c625e3d15be572b9e023b9f708 100644
--- a/chrome/chrome_browser_extensions.gypi
+++ b/chrome/chrome_browser_extensions.gypi
@@ -999,9 +999,28 @@
             'browser/extensions/extension_tab_util_android.cc',
           ],
           'sources!': [
+            'browser/apps/shortcut_manager.cc',
+            'browser/apps/shortcut_manager_factory.cc',
+            'browser/extensions/api/declarative/rules_registry_with_cache.cc',
+            'browser/extensions/api/processes/processes_api_constants.cc',
+            'browser/extensions/api/web_navigation/frame_navigation_state.cc',
+            'browser/extensions/api/web_navigation/web_navigation_api.cc',
+            'browser/extensions/api/web_navigation/web_navigation_api_constants.cc',
+            'browser/extensions/app_icon_loader_impl.cc',
+            'browser/extensions/browser_extension_window_controller.cc',
+            'browser/extensions/context_menu_matcher.cc',
+            'browser/extensions/extension_context_menu_model.cc',
             'browser/extensions/extension_error_ui_default.cc',
             'browser/extensions/extension_error_ui_default.h',
+            'browser/extensions/extension_function_util.cc',
+            'browser/extensions/extension_infobar_delegate.cc',
+            'browser/extensions/extension_install_ui.cc',
             'browser/extensions/extension_tab_util.cc',
+            'browser/extensions/extension_uninstall_dialog.cc',
+            'browser/extensions/theme_installed_infobar_delegate.cc',
+            'browser/extensions/webstore_startup_installer.cc',
+            'browser/extensions/window_controller.cc',
+            'browser/extensions/window_controller_list.cc',
           ],
         }],
         ['chrome_multiple_dll!=1', {