[Build Fix] Add missing #include

TBR=thestig@chromium.org

Review URL: https://codereview.chromium.org/84533002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236956 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/ui/webui/extensions/extension_error_handler.cc

@@ -10,6 +10,7 @@
 #include "base/location.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/threading/sequenced_worker_pool.h"
 #include "base/values.h"
 #include "chrome/browser/devtools/devtools_window.h"
 #include "chrome/browser/extensions/extension_service.h"

chrome/browser/ui/webui/nacl_ui.cc

@@ -17,6 +17,7 @@
 #include "base/strings/string16.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/threading/sequenced_worker_pool.h"
 #include "base/values.h"
 #include "chrome/browser/plugins/plugin_prefs.h"
 #include "chrome/browser/profiles/profile.h"

components/nacl/browser/nacl_process_host.cc

@@ -23,6 +23,7 @@
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/threading/sequenced_worker_pool.h"
 #include "base/win/windows_version.h"
 #include "build/build_config.h"
 #include "components/nacl/browser/nacl_browser.h"