[DevTools] Migrate storage domain to new generator.

content/browser/devtools/render_frame_devtools_agent_host.h

Index: content/browser/devtools/render_frame_devtools_agent_host.h
diff --git a/content/browser/devtools/render_frame_devtools_agent_host.h b/content/browser/devtools/render_frame_devtools_agent_host.h
index b17972cd15961272f758956ae7dff7fdc4c0b49d..2b464da880893e21b766379946a9e6d0c8c4c0fd 100644
--- a/content/browser/devtools/render_frame_devtools_agent_host.h
+++ b/content/browser/devtools/render_frame_devtools_agent_host.h
@@ -42,7 +42,6 @@ class RenderFrameHostImpl;
 namespace devtools {
 namespace input { class InputHandler; }
 namespace service_worker { class ServiceWorkerHandler; }
-namespace storage { class StorageHandler; }
 namespace target { class TargetHandler; }
 }
 
@@ -55,6 +54,7 @@ class NetworkHandler;
 class PageHandler;
 class SchemaHandler;
 class SecurityHandler;
+class StorageHandler;
 class TracingHandler;
 }  // namespace protocol
 
@@ -193,8 +193,7 @@ class CONTENT_EXPORT RenderFrameDevToolsAgentHost
   std::unique_ptr<protocol::SecurityHandler> security_handler_;
   std::unique_ptr<devtools::service_worker::ServiceWorkerHandler>
       service_worker_handler_;
-  std::unique_ptr<devtools::storage::StorageHandler>
-      storage_handler_;
+  std::unique_ptr<protocol::StorageHandler> storage_handler_;
   std::unique_ptr<devtools::target::TargetHandler> target_handler_;
   std::unique_ptr<protocol::TracingHandler> tracing_handler_;
   std::unique_ptr<protocol::EmulationHandler> emulation_handler_;