Remove old WebSocket implementation from content/

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index ce82a4d8a882eb53197b4bdfdee61356cb57b358..5c472f03574a6ea92c3fba1098e39014ddf004fd 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -26,7 +26,6 @@
 #include "content/child/service_worker/service_worker_network_provider.h"
 #include "content/child/service_worker/service_worker_provider_context.h"
 #include "content/child/service_worker/web_service_worker_provider_impl.h"
-#include "content/child/web_socket_stream_handle_impl.h"
 #include "content/child/web_url_loader_impl.h"
 #include "content/child/web_url_request_util.h"
 #include "content/child/webmessageportchannel_impl.h"
@@ -36,7 +35,6 @@
 #include "content/common/frame_messages.h"
 #include "content/common/input_messages.h"
 #include "content/common/service_worker/service_worker_types.h"
-#include "content/common/socket_stream_handle_data.h"
 #include "content/common/swapped_out_messages.h"
 #include "content/common/view_messages.h"
 #include "content/public/common/bindings_policy.h"
@@ -3099,13 +3097,6 @@ void RenderFrameImpl::requestStorageQuota(
       QuotaDispatcher::CreateWebStorageQuotaCallbacksWrapper(callbacks));
 }
 
-void RenderFrameImpl::willOpenSocketStream(
-    blink::WebSocketStreamHandle* handle) {
-  WebSocketStreamHandleImpl* impl =
-      static_cast<WebSocketStreamHandleImpl*>(handle);
-  impl->SetUserData(handle, new SocketStreamHandleData(routing_id_));
-}
-
 void RenderFrameImpl::willOpenWebSocket(blink::WebSocketHandle* handle) {
   WebSocketBridge* impl = static_cast<WebSocketBridge*>(handle);
   impl->set_render_frame_id(routing_id_);