Move some Autofill processing logic on form submit to a background thread.

chrome/browser/ui/tab_contents/tab_contents_wrapper.cc

 // Copyright (c) 2011 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/tab_contents/tab_contents_wrapper.h"
 
 #include "base/utf_string_conversions.h"
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
@@ skipping 229 matching lines @@
       in_destructor_(false),
       tab_contents_(contents) {
   DCHECK(contents);
   DCHECK(!GetCurrentWrapperForContents(contents));
   // Stash this in the property bag so it can be retrieved without having to
   // go to a Browser.
   property_accessor()->SetProperty(contents->property_bag(), this);
 
   // Create the tab helpers.
   autocomplete_history_manager_.reset(new AutocompleteHistoryManager(contents));
-  autofill_manager_.reset(new AutofillManager(this));
+  autofill_manager_ = new AutofillManager(this);
   if (CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kExternalAutofillPopup)) {
     autofill_external_delegate_.reset(
         AutofillExternalDelegate::Create(this, autofill_manager_.get()));
     autofill_manager_->SetExternalDelegate(autofill_external_delegate_.get());
     autocomplete_history_manager_->SetExternalDelegate(
         autofill_external_delegate_.get());
   }
   automation_tab_helper_.reset(new AutomationTabHelper(contents));
   blocked_content_tab_helper_.reset(new BlockedContentTabHelper(this));
@@ skipping 419 matching lines @@
   render_view_host()->Send(
       new ChromeViewMsg_SetClientSidePhishingDetection(routing_id(),
                                                        safe_browsing));
 #endif
 }
 
 void TabContentsWrapper::ExitFullscreenMode() {
   if (tab_contents() && render_view_host())
     tab_contents()->render_view_host()->ExitFullscreen();
 }