Revert of Fix the handling of user gestures for external protocol handler dialogs.

extensions/shell/browser/shell_extensions_browser_client.cc

Index: extensions/shell/browser/shell_extensions_browser_client.cc
diff --git a/extensions/shell/browser/shell_extensions_browser_client.cc b/extensions/shell/browser/shell_extensions_browser_client.cc
index bc5d8bde522fcfc9fa195c9ee504dfc1341de549..2858521a716b365dedefc4b579d0dae0c4338e5d 100644
--- a/extensions/shell/browser/shell_extensions_browser_client.cc
+++ b/extensions/shell/browser/shell_extensions_browser_client.cc
@@ -200,6 +200,9 @@ bool ShellExtensionsBrowserClient::DidVersionUpdate(BrowserContext* context) {
   return false;
 }
 
+void ShellExtensionsBrowserClient::PermitExternalProtocolHandler() {
+}
+
 scoped_ptr<AppSorting> ShellExtensionsBrowserClient::CreateAppSorting() {
   return scoped_ptr<AppSorting>(new ShellAppSorting);
 }