Fix memory leak when errors happens in NaClProcessHost::Launch. Allow Launch to

chrome/browser/renderer_host/chrome_render_message_filter.cc

Index: chrome/browser/renderer_host/chrome_render_message_filter.cc
===================================================================
--- chrome/browser/renderer_host/chrome_render_message_filter.cc	(revision 127497)
+++ chrome/browser/renderer_host/chrome_render_message_filter.cc	(working copy)
@@ -156,12 +156,7 @@
 void ChromeRenderMessageFilter::OnLaunchNaCl(
     const std::wstring& url, int socket_count, IPC::Message* reply_msg) {
   NaClProcessHost* host = new NaClProcessHost(url);
-  if (!host->Launch(this, socket_count, reply_msg)) {
-    // On failure, the NaClProcessHost didn't send the reply which the renderer
-    // is blocked on. Unblock the renderer by sending an error.
-    reply_msg->set_reply_error();
-    Send(reply_msg);
-  }
+  host->Launch(this, socket_count, reply_msg);
 }
 #endif