[Clean up] Drop chrome::search:: namespace.

Drop the chrome::search:: namespace, but retain chrome:: for only enums and global functions.  Regular classes would be namespace free.

BUG=218625
TEST=none

Review URL: https://chromiumcodereview.appspot.com/12594017

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@190829 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index 2dddab4..66d83ec 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -180,7 +180,7 @@
   apps::RegisterPrefs(registry);
   browser_shutdown::RegisterPrefs(registry);
   BrowserProcessImpl::RegisterPrefs(registry);
-  chrome::RegisterScreenshotPrefs(registry);
+  RegisterScreenshotPrefs(registry);
   ExternalProtocolHandler::RegisterPrefs(registry);
   FlagsUI::RegisterPrefs(registry);
   geolocation::RegisterPrefs(registry);
@@ -267,7 +267,7 @@
   BookmarkPromptPrefs::RegisterUserPrefs(registry);
   bookmark_utils::RegisterUserPrefs(registry);
   browser_sync::SyncPrefs::RegisterUserPrefs(registry);
-  chrome::search::RegisterUserPrefs(registry);
+  chrome::RegisterInstantUserPrefs(registry);
   ChromeContentBrowserClient::RegisterUserPrefs(registry);
   ChromeDownloadManagerDelegate::RegisterUserPrefs(registry);
   ChromeVersionService::RegisterUserPrefs(registry);