Move extension_error_utils.* and url_pattern_set.* into

chrome/browser/ui/webui/options/content_settings_handler.cc

Index: chrome/browser/ui/webui/options/content_settings_handler.cc
diff --git a/chrome/browser/ui/webui/options/content_settings_handler.cc b/chrome/browser/ui/webui/options/content_settings_handler.cc
index f2565aa1442bb7297c7d5a786f013dc5fb8dfbcf..518f6c0d9f32878c60cac2e0593f6f064f189db7 100644
--- a/chrome/browser/ui/webui/options/content_settings_handler.cc
+++ b/chrome/browser/ui/webui/options/content_settings_handler.cc
@@ -194,9 +194,9 @@ void AddExceptionsGrantedByHostedApps(
        extension != extensions->end(); ++extension) {
     if (!app_filter(**extension, profile)) continue;
 
-    URLPatternSet web_extent = (*extension)->web_extent();
+    extensions::URLPatternSet web_extent = (*extension)->web_extent();
     // Add patterns from web extent.
-    for (URLPatternSet::const_iterator pattern = web_extent.begin();
+    for (extensions::URLPatternSet::const_iterator pattern = web_extent.begin();
          pattern != web_extent.end(); ++pattern) {
       std::string url_pattern = pattern->GetAsString();
       AddExceptionForHostedApp(url_pattern, **extension, exceptions);