[DevTools] Move IO and Tracing to new generator.

content/browser/devtools/devtools_agent_host_impl.h

Index: content/browser/devtools/devtools_agent_host_impl.h
diff --git a/content/browser/devtools/devtools_agent_host_impl.h b/content/browser/devtools/devtools_agent_host_impl.h
index 794bb7f47d83ab647961716aa5e5827a3ebedf25..54335ff959006abc81221770c610bf6702b2cd0e 100644
--- a/content/browser/devtools/devtools_agent_host_impl.h
+++ b/content/browser/devtools/devtools_agent_host_impl.h
@@ -73,7 +73,7 @@ class CONTENT_EXPORT DevToolsAgentHostImpl : public DevToolsAgentHost,
 
   void NotifyCreated();
   void HostClosed();
-  devtools::DevToolsIOContext* GetIOContext() { return &io_context_; }
+  DevToolsIOContext* GetIOContext() { return &io_context_; }
 
   DevToolsSession* session() { return session_.get(); }
 
@@ -90,7 +90,7 @@ class CONTENT_EXPORT DevToolsAgentHostImpl : public DevToolsAgentHost,
   int last_session_id_;
   std::unique_ptr<DevToolsSession> session_;
   DevToolsAgentHostClient* client_;
-  devtools::DevToolsIOContext io_context_;
+  DevToolsIOContext io_context_;
   static int s_attached_count_;
   static int s_force_creation_count_;
 };