Deprecate DLOPEN_GNOME_KEYRING flag

chrome/browser/password_manager/native_backend_gnome_x.cc

Index: chrome/browser/password_manager/native_backend_gnome_x.cc
diff --git a/chrome/browser/password_manager/native_backend_gnome_x.cc b/chrome/browser/password_manager/native_backend_gnome_x.cc
index 5c1118cde6bf84d7cb6bbb57595a69d6659a29a4..6226858f726aa232451b866e1921ffb1d0aa45fe 100644
--- a/chrome/browser/password_manager/native_backend_gnome_x.cc
+++ b/chrome/browser/password_manager/native_backend_gnome_x.cc
@@ -9,6 +9,7 @@
 #include <stddef.h>
 #include <stdint.h>
 
+#include <limits>
 #include <map>
 #include <memory>
 #include <string>
@@ -48,8 +49,6 @@ GNOME_KEYRING_FOR_EACH_FUNC(GNOME_KEYRING_DEFINE_POINTER)
 
 bool GnomeKeyringLoader::keyring_loaded = false;
 
-#if defined(DLOPEN_GNOME_KEYRING)
-
 #define GNOME_KEYRING_FUNCTION_INFO(name) \
   {"gnome_keyring_"#name, reinterpret_cast<void**>(&gnome_keyring_##name)},
 const GnomeKeyringLoader::FunctionInfo GnomeKeyringLoader::functions[] = {
@@ -89,21 +88,6 @@ bool GnomeKeyringLoader::LoadGnomeKeyring() {
   return true;
 }
 
-#else  // defined(DLOPEN_GNOME_KEYRING)
-
-bool GnomeKeyringLoader::LoadGnomeKeyring() {
-  if (keyring_loaded)
-    return true;
-#define GNOME_KEYRING_ASSIGN_POINTER(name) \
-  gnome_keyring_##name = &::gnome_keyring_##name;
-  GNOME_KEYRING_FOR_EACH_FUNC(GNOME_KEYRING_ASSIGN_POINTER)
-#undef GNOME_KEYRING_ASSIGN_POINTER
-  keyring_loaded = true;
-  return true;
-}
-
-#endif  // defined(DLOPEN_GNOME_KEYRING)
-
 namespace {
 
 const char kGnomeKeyringAppString[] = "chrome";