Do not load extension system in the Profile import process.

content/public/common/content_switches.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 "content/public/common/content_switches.h"
 
 namespace switches {
 
 // By default, file:// URIs cannot read other file:// URIs. This is an
 // override for developers who need the old behavior for testing.
@@ skipping 446 matching lines @@
 
 // Runs plugins inside the renderer process
 const char kInProcessPlugins[]              = "in-process-plugins";
 
 // Runs WebGL inside the renderer process.
 const char kInProcessWebGL[]                = "in-process-webgl";
 
 // Specifies the flags passed to JS engine
 const char kJavaScriptFlags[]               = "js-flags";
 
+// Specifies whether a forked browser process should always run BrowserMain.
+const char kLaunchAsBrowser[]               = "as-browser";

[Jói, 2012/12/17 13:46:16]

It feels a bit weird to promote this to a publicly-available switch since it is
only checked by test code AFAIU.  Is there no way to add the flag on the Chrome
side only in test code (which is already allowed to use content/public/test,
where this flag was originally defined)?

[tapted, 2012/12/18 02:25:58]

I've put up an alternative that removes the changes in content/public by adding
new, generic interfaces to first_run. Let me know what you think.

+
 // Load an NPAPI plugin from the specified path.
 const char kLoadPlugin[]                    = "load-plugin";
 
 // Sets the minimum log level. Valid values are from 0 to 3:
 // INFO = 0, WARNING = 1, LOG_ERROR = 2, LOG_FATAL = 3.
 const char kLoggingLevel[]                  = "log-level";
 
 // Make plugin processes log their sent and received messages to VLOG(1).
 const char kLogPluginMessages[]             = "log-plugin-messages";
 
@@ skipping 284 matching lines @@
     = "disable-fixed-position-creates-stacking-context";
 
 // Defer image decoding in WebKit until painting.
 const char kEnableDeferredImageDecoding[] = "enable-deferred-image-decoding";
 
 // Enables history navigation in response to horizontal overscroll.
 const char kEnableOverscrollHistoryNavigation[] =
     "enable-overscroll-history-navigation";
 
 }  // namespace switches