Revert of [WebSocket] Send a close frame when the renderer process is gone.

content/browser/renderer_host/websocket_dispatcher_host.cc

Index: content/browser/renderer_host/websocket_dispatcher_host.cc
diff --git a/content/browser/renderer_host/websocket_dispatcher_host.cc b/content/browser/renderer_host/websocket_dispatcher_host.cc
index d49199a7cb8f44e08ea03435a58905f63b618fc5..2af2f0814c80a10755b4c0f318e88ac872666444 100644
--- a/content/browser/renderer_host/websocket_dispatcher_host.cc
+++ b/content/browser/renderer_host/websocket_dispatcher_host.cc
@@ -5,7 +5,6 @@
 #include "content/browser/renderer_host/websocket_dispatcher_host.h"
 
 #include <string>
-#include <vector>
 
 #include "base/callback.h"
 #include "base/logging.h"
@@ -179,21 +178,6 @@
 }
 
 WebSocketDispatcherHost::~WebSocketDispatcherHost() {
-  std::vector<WebSocketHost*> hosts;
-  for (base::hash_map<int, WebSocketHost*>::const_iterator i = hosts_.begin();
-       i != hosts_.end(); ++i) {
-    // In order to avoid changing the container while iterating, we copy
-    // the hosts.
-    hosts.push_back(i->second);
-  }
-
-  for (size_t i = 0; i < hosts.size(); ++i) {
-    // Note that some calls to GoAway could fail. In that case hosts[i] will be
-    // deleted and removed from |hosts_| in |DoDropChannel|.
-    hosts[i]->GoAway();
-    hosts[i] = NULL;
-  }
-
   STLDeleteContainerPairSecondPointers(hosts_.begin(), hosts_.end());
 }