Rename widget to search widget and use new bundleid to always build.

ios/chrome/search_widget_extension/BUILD.gn

 # Copyright 2017 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.
 
 import("//build/config/ios/rules.gni")
 import("//build/config/mac/base_rules.gni")
 import("//build/mac/tweak_info_plist.gni")
 import("//ios/build/chrome_build.gni")
 
 tweak_info_plist("tweak_info_plist") {
   info_plist = "Info.plist"
 }
 
 compile_plist("entitlements") {
   format = "xml1"
   substitutions = [ "IOS_BUNDLE_ID_PREFIX=$ios_app_bundle_id_prefix" ]
-  output_name = "$target_gen_dir/today_extension.appex.entitlements"
+  output_name = "$target_gen_dir/search_widget_extension.appex.entitlements"
   plist_templates =
-      [ "entitlements/external/widget_extension.appex.entitlements" ]
+      [ "entitlements/external/search_widget_extension.appex.entitlements" ]
 }
 
-ios_appex_bundle("widget_extension") {
+ios_appex_bundle("search_widget_extension") {
   sources = [
-    "widget_view.h",
-    "widget_view.mm",
-    "widget_view_controller.h",
-    "widget_view_controller.mm",
+    "search_widget_view.h",
+    "search_widget_view.mm",
+    "search_widget_view_controller.h",
+    "search_widget_view_controller.mm",
   ]
 
   deps = [
     "//base",
     "//components/open_from_clipboard:open_from_clipboard_impl",
     "//components/prefs",
     "//components/variations",
     "//components/version_info",
     "//ios/chrome/common",
     "//ios/chrome/common/app_group",
     "//ios/chrome/common/app_group:client",
     "//ios/chrome/common/physical_web",
     "//ios/chrome/today_extension/strings",
     "//ios/third_party/material_components_ios",
     "//net",
     "//ui/base",
   ]
 
   libs = [
     "Foundation.framework",
     "NotificationCenter.framework",
     "UIKit.framework",
   ]
 
   extra_substitutions = [
     "CHROME_CHANNEL_SCHEME=$url_channel_scheme",
     "CHROMIUM_SHORT_NAME=$chromium_short_name",
-
-    # The widget_extension and today_extension are using the same provisioning
-    # profile during development work.
-    # TODO(crbug.com/682238) : Request provisioning profile if widget is kept.
-    "WIDGET_EXTENSION_BUNDLE_ID=$chromium_bundle_id.TodayExtension",
+    "WIDGET_EXTENSION_BUNDLE_ID=$chromium_bundle_id.SearchTodayExtension",
   ]
 
   configs += [ "//build/config/compiler:enable_arc" ]
 
   entitlements_target = ":entitlements"
   info_plist_target = ":tweak_info_plist"
 }