Moves some functions in search.h to components.

These functions are simplistic and doesn't depend on chrome's
feature, so there's no reason to be under chrome/browser.
Moving to components/ would help further componentization
task of autocomplete anad omnibox_field_trials.

BUG=371538
[email protected], [email protected], [email protected]
[email protected], [email protected]
TEST=build

Review URL: https://codereview.chromium.org/393173002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@284885 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index cc0252b..4a0ce92 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -23,6 +23,7 @@
 #include "components/autofill/core/common/autofill_switches.h"
 #include "components/cloud_devices/common/cloud_devices_switches.h"
 #include "components/nacl/common/nacl_switches.h"
+#include "components/search/search_switches.h"
 #include "content/public/browser/user_metrics.h"
 #include "extensions/common/switches.h"
 #include "grit/chromium_strings.h"