[Extensions] Remove "show button" UI from chrome://extensions

chrome/browser/ui/webui/extensions/extension_settings_handler.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/ui/webui/extensions/extension_settings_handler.h"
 
 #include <vector>
 
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 153 matching lines @@
       l10n_util::GetStringFUTF16(
           IDS_EXTENSIONS_ADDED_WITHOUT_KNOWLEDGE,
           l10n_util::GetStringUTF16(IDS_EXTENSION_WEB_STORE_TITLE)));
   source->AddString("extensionSettingsLearnMore",
       l10n_util::GetStringUTF16(IDS_LEARN_MORE));
   source->AddString("extensionSettingsSuspiciousInstallHelpUrl",
                     base::ASCIIToUTF16(
                         google_util::AppendGoogleLocaleParam(
                             GURL(chrome::kRemoveNonCWSExtensionURL),
                             g_browser_process->GetApplicationLocale()).spec()));
-  source->AddString("extensionSettingsShowButton",
-      l10n_util::GetStringUTF16(IDS_EXTENSIONS_SHOW_BUTTON));
   source->AddString("extensionSettingsLoadUnpackedButton",
       l10n_util::GetStringUTF16(IDS_EXTENSIONS_LOAD_UNPACKED_BUTTON));
   source->AddString("extensionSettingsPackButton",
       l10n_util::GetStringUTF16(IDS_EXTENSIONS_PACK_BUTTON));
   source->AddString("extensionSettingsCommandsLink",
       l10n_util::GetStringUTF16(IDS_EXTENSIONS_COMMANDS_CONFIGURE));
   source->AddString("extensionSettingsUpdateButton",
       l10n_util::GetStringUTF16(IDS_EXTENSIONS_UPDATE_BUTTON));
   source->AddString("extensionSettingsCrashMessage",
       l10n_util::GetStringUTF16(IDS_EXTENSIONS_CRASHED_EXTENSION));
@@ skipping 129 matching lines @@
       unpacked_extensions.push_back(extension.get());
   }
 
   for (std::vector<const Extension*>::iterator iter =
        unpacked_extensions.begin(); iter != unpacked_extensions.end(); ++iter) {
     extension_service_->ReloadExtensionWithQuietFailure((*iter)->id());
   }
 }
 
 }  // namespace extensions