Browser Plugin: Move to old namespace

content/renderer/browser_plugin/old/browser_plugin_registry.h

Index: content/renderer/browser_plugin/old/browser_plugin_registry.h
diff --git a/content/renderer/browser_plugin/old/browser_plugin_registry.h b/content/renderer/browser_plugin/old/browser_plugin_registry.h
index 93b9bd8554bfd4f3431bd4c8003eab9757d08967..548ee2fc157b4119e4007114040c1c77dfe5fc2a 100644
--- a/content/renderer/browser_plugin/old/browser_plugin_registry.h
+++ b/content/renderer/browser_plugin/old/browser_plugin_registry.h
@@ -10,6 +10,7 @@
 #include "webkit/plugins/ppapi/plugin_delegate.h"
 
 namespace content {
+namespace old {
 
 // This class holds references to all of the known live browser plugin
 // modules. There is one browser plugin module per guest renderer process.
@@ -31,6 +32,7 @@ class BrowserPluginRegistry
   IDMap<webkit::ppapi::PluginModule> modules_;
 };
 
+}  // namespace old
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_BROWSER_PLUGIN_OLD_BROWSER_PLUGIN_REGISTRY_H_