Decouple DevTools from socket implementation.

content/public/browser/devtools_http_handler.h

Index: content/public/browser/devtools_http_handler.h
diff --git a/content/public/browser/devtools_http_handler.h b/content/public/browser/devtools_http_handler.h
index db0a9983001de390194bb7ba994d72c6be16d0bb..5d192819eecbd5bb3c5b68605192218bb96b06bf 100644
--- a/content/public/browser/devtools_http_handler.h
+++ b/content/public/browser/devtools_http_handler.h
@@ -11,6 +11,7 @@
 #include "content/common/content_export.h"
 
 namespace net {
+class StreamListenSocketFactory;
 class URLRequestContextGetter;
 }
 
@@ -41,10 +42,9 @@ class DevToolsHttpHandler {
   CONTENT_EXPORT static int GetFrontendResourceId(
       const std::string& name);
 
-  // Takes ownership over |delegate|.
+  // Takes ownership over |socket_factory| and |delegate|.
   CONTENT_EXPORT static DevToolsHttpHandler* Start(
-      const std::string& ip,
-      int port,
+      const net::StreamListenSocketFactory* socket_factory,
       const std::string& frontend_url,
       net::URLRequestContextGetter* request_context_getter,
       DevToolsHttpHandlerDelegate* delegate);