Try 2 - Change how ui::Clipboard is accessed so there's only one per thread.

chrome/browser/browser_process_impl.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/browser_process_impl.h"
 
 #include <algorithm>
 #include <map>
 #include <set>
 #include <vector>
@@ skipping 60 matching lines @@
 #include "chrome/installer/util/google_update_constants.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/child_process_security_policy.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/plugin_service.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/resource_dispatcher_host.h"
 #include "content/public/common/pepper_plugin_info.h"
 #include "net/socket/client_socket_pool_manager.h"
 #include "net/url_request/url_request_context_getter.h"
-#include "ui/base/clipboard/clipboard.h"
 #include "ui/base/l10n/l10n_util.h"
 
 #if !defined(ENABLE_CONFIGURATION_POLICY)
 #include "chrome/browser/policy/policy_service_stub.h"
 #endif  // defined(ENABLE_CONFIGURATION_POLICY)
 
 #if defined(OS_WIN)
 #include "base/win/windows_version.h"
 #include "ui/views/focus/view_storage.h"
 #elif defined(OS_MACOSX)
@@ skipping 43 matching lines @@
       created_icon_manager_(false),
       created_notification_ui_manager_(false),
       created_safe_browsing_service_(false),
       module_ref_count_(0),
       did_start_(false),
       checked_for_new_frames_(false),
       using_new_frames_(false),
       thumbnail_generator_(new ThumbnailGenerator),
       download_status_updater_(new DownloadStatusUpdater) {
   g_browser_process = this;
-  clipboard_.reset(new ui::Clipboard);
 
 #if defined(ENABLE_PRINTING)
   // Must be created after the NotificationService.
   print_job_manager_.reset(new printing::PrintJobManager);
 #endif
 
   net_log_.reset(new ChromeNetLog);
 
   ChildProcessSecurityPolicy::GetInstance()->RegisterWebSafeScheme(
       chrome::kExtensionScheme);
@@ skipping 225 matching lines @@
   return profile_manager_.get();
 }
 
 PrefService* BrowserProcessImpl::local_state() {
   DCHECK(CalledOnValidThread());
   if (!created_local_state_)
     CreateLocalState();
   return local_state_.get();
 }
 
-ui::Clipboard* BrowserProcessImpl::clipboard() {
-  DCHECK(CalledOnValidThread());
-  return clipboard_.get();
-}
-
 net::URLRequestContextGetter* BrowserProcessImpl::system_request_context() {
   DCHECK(CalledOnValidThread());
   return io_thread()->system_url_request_context_getter();
 }
 
 chrome_variations::VariationsService* BrowserProcessImpl::variations_service() {
   DCHECK(CalledOnValidThread());
   if (!variations_service_.get())
     variations_service_.reset(new chrome_variations::VariationsService());
   return variations_service_.get();
@@ skipping 531 matching lines @@
 }
 
 void BrowserProcessImpl::OnAutoupdateTimer() {
   if (CanAutorestartForUpdate()) {
     DLOG(WARNING) << "Detected update.  Restarting browser.";
     RestartBackgroundInstance();
   }
 }
 
 #endif  // (defined(OS_WIN) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)