Remove PNaCl's RequestFirstInstall, use resource throttle instead

chrome/browser/nacl_host/nacl_host_message_filter.cc

Index: chrome/browser/nacl_host/nacl_host_message_filter.cc
diff --git a/chrome/browser/nacl_host/nacl_host_message_filter.cc b/chrome/browser/nacl_host/nacl_host_message_filter.cc
index 0b7a8cb92ae774d9dfe21b281cbc6173c05a4476..1c87b6c02206329edb5a05b3cca158460e6b5f9d 100644
--- a/chrome/browser/nacl_host/nacl_host_message_filter.cc
+++ b/chrome/browser/nacl_host/nacl_host_message_filter.cc
@@ -39,8 +39,6 @@ bool NaClHostMessageFilter::OnMessageReceived(const IPC::Message& message,
   IPC_BEGIN_MESSAGE_MAP_EX(NaClHostMessageFilter, message, *message_was_ok)
 #if !defined(DISABLE_NACL)
     IPC_MESSAGE_HANDLER_DELAY_REPLY(NaClHostMsg_LaunchNaCl, OnLaunchNaCl)
-    IPC_MESSAGE_HANDLER(NaClHostMsg_EnsurePnaclInstalled,
-                        OnEnsurePnaclInstalled)
     IPC_MESSAGE_HANDLER_DELAY_REPLY(NaClHostMsg_GetReadonlyPnaclFD,
                                     OnGetReadonlyPnaclFd)
     IPC_MESSAGE_HANDLER_DELAY_REPLY(NaClHostMsg_NaClCreateTemporaryFile,
@@ -87,27 +85,6 @@ void NaClHostMessageFilter::OnLaunchNaCl(
   host->Launch(this, reply_msg, manifest_path);
 }
 
-void NaClHostMessageFilter::ReplyEnsurePnaclInstalled(
-    int instance,
-    bool success) {
-  Send(new NaClViewMsg_EnsurePnaclInstalledReply(instance, success));
-}
-
-void NaClHostMessageFilter::SendProgressEnsurePnaclInstalled(
-    int instance,
-    const nacl::PnaclInstallProgress& progress) {
-    // TODO(jvoung): actually send an IPC.
-}
-
-void NaClHostMessageFilter::OnEnsurePnaclInstalled(
-    int instance) {
-  nacl_file_host::EnsurePnaclInstalled(
-      base::Bind(&NaClHostMessageFilter::ReplyEnsurePnaclInstalled,
-                 this, instance),
-      base::Bind(&NaClHostMessageFilter::SendProgressEnsurePnaclInstalled,
-                 this, instance));
-}
-
 void NaClHostMessageFilter::OnGetReadonlyPnaclFd(
     const std::string& filename, IPC::Message* reply_msg) {
   // This posts a task to another thread, but the renderer will