Enable persistent http connections.

	Bug:5347735

Change-Id: I03712a4a9a59b62440b6190fc84fe8ed78d072e7
diff --git a/net/http/http_basic_stream.cc b/net/http/http_basic_stream.cc
index 076d18f..6501a59 100644
--- a/net/http/http_basic_stream.cc
+++ b/net/http/http_basic_stream.cc
@@ -72,13 +72,7 @@
 }
 
 void HttpBasicStream::Close(bool not_reusable) {
-#ifdef ANDROID
-  // Disable connection reuse for bug 5226268
-  // [Browser] http keep-alive packets are sent too frequently to network
-  parser_->Close(true);
-#else
   parser_->Close(not_reusable);
-#endif
 }
 
 HttpStream* HttpBasicStream::RenewStreamForAuth() {