Revert external protocol handler user gesture fix on M36

chrome/browser/extensions/chrome_extensions_browser_client.cc

 // Copyright 2013 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/extensions/chrome_extensions_browser_client.h"
 
 #include "apps/common/api/generated_api.h"
 #include "base/command_line.h"
 #include "base/version.h"
 #include "chrome/browser/app_mode/app_mode_utils.h"
@@ skipping 205 matching lines @@
   pref_service->SetString(pref_names::kLastChromeVersion,
                           current_version);
 
   // If there was no version string in prefs, assume we're out of date.
   if (!last_version.IsValid())
     return true;
 
   return last_version.IsOlderThan(current_version);
 }
 
+void ChromeExtensionsBrowserClient::PermitExternalProtocolHandler() {
+  ExternalProtocolHandler::PermitLaunchUrl();
+}
+
 scoped_ptr<AppSorting> ChromeExtensionsBrowserClient::CreateAppSorting() {
   return scoped_ptr<AppSorting>(new ChromeAppSorting());
 }
 
 bool ChromeExtensionsBrowserClient::IsRunningInForcedAppMode() {
   return chrome::IsRunningInForcedAppMode();
 }
 
 ApiActivityMonitor* ChromeExtensionsBrowserClient::GetApiActivityMonitor(
     content::BrowserContext* context) {
@@ skipping 35 matching lines @@
 }
 
 scoped_ptr<extensions::RuntimeAPIDelegate>
 ChromeExtensionsBrowserClient::CreateRuntimeAPIDelegate(
     content::BrowserContext* context) const {
   return scoped_ptr<extensions::RuntimeAPIDelegate>(
       new ChromeRuntimeAPIDelegate(context));
 }
 
 }  // namespace extensions