Move content settings extension API to content_settings dir.

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

Index: chrome/browser/extensions/api/content_settings/content_settings_unittest.cc
diff --git a/chrome/browser/extensions/extension_content_settings_unittest.cc b/chrome/browser/extensions/api/content_settings/content_settings_unittest.cc
similarity index 91%
rename from chrome/browser/extensions/extension_content_settings_unittest.cc
rename to chrome/browser/extensions/api/content_settings/content_settings_unittest.cc
index 500afc2b0be0b74656b96f0c2d89445108a5b0e5..2af28880973be33a5e3f929e24c3b961c32c8796 100644
--- a/chrome/browser/extensions/extension_content_settings_unittest.cc
+++ b/chrome/browser/extensions/api/content_settings/content_settings_unittest.cc
@@ -4,9 +4,10 @@
 
 #include "testing/gtest/include/gtest/gtest.h"
 
-#include "chrome/browser/extensions/extension_content_settings_helpers.h"
+#include "chrome/browser/extensions/api/content_settings/content_settings_helpers.h"
 
-namespace helpers = extension_content_settings_helpers;
+namespace extensions {
+namespace helpers = content_settings_helpers;
 
 TEST(ExtensionContentSettingsHelpersTest, ParseExtensionPattern) {
   const struct {
@@ -47,5 +48,6 @@ TEST(ExtensionContentSettingsHelpersTest, ParseExtensionPattern) {
         << "Unexpected error parsing "
         << kInvalidTestPatterns[i].extension_pattern;
   }
-
 }
+
+}  // namespace extensions