Move content settings extension API to content_settings dir.

chrome/browser/extensions/api/content_settings/content_settings_helpers.cc

 // Copyright (c) 2011 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/extensions/extension_content_settings_helpers.h"
+#include "chrome/browser/extensions/api/content_settings/content_settings_helpers.h"
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/common/extensions/url_pattern.h"
 #include "content/public/common/url_constants.h"
 
 namespace {
 
 const char kNoPathWildcardsError[] =
@@ skipping 30 matching lines @@
   if (scheme == chrome::kHttpScheme)
     return "80";
   if (scheme == chrome::kHttpsScheme)
     return "443";
   NOTREACHED();
   return "";
 }
 
 }  // namespace
 
-namespace extension_content_settings_helpers {
+namespace extensions {
+namespace content_settings_helpers {
 
 ContentSettingsPattern ParseExtensionPattern(const std::string& pattern_str,
                                              std::string* error) {
   const int kAllowedSchemes =
       URLPattern::SCHEME_HTTP | URLPattern::SCHEME_HTTPS |
       URLPattern::SCHEME_FILE;
   URLPattern url_pattern(kAllowedSchemes);
   URLPattern::ParseResult result = url_pattern.Parse(pattern_str);
   if (result != URLPattern::PARSE_SUCCESS) {
     *error = URLPattern::GetParseResultString(result);
@@ skipping 70 matching lines @@
   }
   return false;
 }
 
 const char* ContentSettingToString(ContentSetting setting) {
   size_t index = static_cast<size_t>(setting);
   DCHECK_LT(index, arraysize(kContentSettingNames));
   return kContentSettingNames[index];
 }
 
-}  // namespace extension_content_settings_helpers
+}  // namespace content_settings_helpers
+}  // namespace extensions