[Android] Improve sad tab strings

chrome/BUILD.gn

 # Copyright 2014 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/chrome_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/compiler/pgo/pgo.gni")
 import("//build/config/features.gni")
 import("//build/config/locales.gni")
 import("//build/config/sanitizers/sanitizers.gni")
@@ skipping 1621 matching lines @@
       "browser/android/contextualsearch/resolved_search_term.h",
     ]
   }
 
   java_cpp_enum("offline_pages_enum_javagen") {
     sources = [
       "browser/android/offline_pages/offline_page_utils.h",
     ]
   }
 
+  java_cpp_enum("sad_tab_event_enum_javagen") {
+    sources = [
+      "browser/ui/sad_tab.cc",
+    ]
+  }
+
   source_set("chrome_android_core") {
     sources = [
       "app/android/chrome_android_initializer.cc",
       "app/android/chrome_android_initializer.h",
       "app/android/chrome_jni_onload.cc",
       "app/android/chrome_jni_onload.h",
       "app/android/chrome_main_delegate_android.cc",
       "app/android/chrome_main_delegate_android.h",
       "app/chrome_main_delegate.cc",
       "app/chrome_main_delegate.h",
@@ skipping 108 matching lines @@
       "//chrome/app/theme/$branding_path_component/product_logo_48.png",
       "//chrome/tools/build/linux/chrome-wrapper",
       "//third_party/xdg-utils/scripts/xdg-mime",
       "//third_party/xdg-utils/scripts/xdg-settings",
     ]
     outputs = [
       "$root_out_dir/{{source_file_part}}",
     ]
   }
 }