Remove PNaCl's RequestFirstInstall, use resource throttle instead

chrome/renderer/pepper/pnacl_translation_resource_host.cc

Index: chrome/renderer/pepper/pnacl_translation_resource_host.cc
diff --git a/chrome/renderer/pepper/pnacl_translation_resource_host.cc b/chrome/renderer/pepper/pnacl_translation_resource_host.cc
index 609ddecf3ba24a8cf1d47a10ba7e422d5f988e04..0546c75f35a83ba4b0933f2bdeb27c20a7e8f571 100644
--- a/chrome/renderer/pepper/pnacl_translation_resource_host.cc
+++ b/chrome/renderer/pepper/pnacl_translation_resource_host.cc
@@ -27,7 +27,6 @@ PnaclTranslationResourceHost::PnaclTranslationResourceHost(
 PnaclTranslationResourceHost::~PnaclTranslationResourceHost() {
   DCHECK(io_message_loop_->BelongsToCurrentThread());
   CleanupCacheRequests();
-  CleanupEnsurePnaclRequests();
 }
 
 void PnaclTranslationResourceHost::OnFilterAdded(IPC::Channel* channel) {
@@ -51,8 +50,6 @@ bool PnaclTranslationResourceHost::OnMessageReceived(
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(PnaclTranslationResourceHost, message)
     IPC_MESSAGE_HANDLER(NaClViewMsg_NexeTempFileReply, OnNexeTempFileReply)
-    IPC_MESSAGE_HANDLER(NaClViewMsg_EnsurePnaclInstalledReply,
-                        OnEnsurePnaclInstalledReply)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
@@ -168,70 +165,4 @@ void PnaclTranslationResourceHost::CleanupCacheRequests() {
   pending_cache_requests_.clear();
 }
 
-void PnaclTranslationResourceHost::EnsurePnaclInstalled(
-    PP_Instance instance,
-    scoped_refptr<TrackedCallback> callback) {
-  DCHECK(PpapiGlobals::Get()->
-         GetMainThreadMessageLoop()->BelongsToCurrentThread());
-  io_message_loop_->PostTask(
-      FROM_HERE,
-      base::Bind(&PnaclTranslationResourceHost::SendEnsurePnaclInstalled,
-                 this, instance, callback));
-  return;
-}
-
-void PnaclTranslationResourceHost::SendEnsurePnaclInstalled(
-    PP_Instance instance,
-    scoped_refptr<TrackedCallback> callback) {
-  DCHECK(io_message_loop_->BelongsToCurrentThread());
-  // If a request is already in, just queue this one and wait for notification.
-  // Hope that the request is not canceled.
-  if (pending_ensure_pnacl_requests_.size() > 0) {
-    pending_ensure_pnacl_requests_.push_back(callback);
-    return;
-  }
-  // Otherwise, try to send the request, then queue.
-  if (!channel_ || !channel_->Send(new NaClHostMsg_EnsurePnaclInstalled(
-          instance))) {
-    PpapiGlobals::Get()->GetMainThreadMessageLoop()->PostTask(
-        FROM_HERE,
-        base::Bind(&TrackedCallback::Run,
-                   callback,
-                   static_cast<int32_t>(PP_ERROR_FAILED)));
-    return;
-  }
-  pending_ensure_pnacl_requests_.push_back(callback);
-}
-
-void PnaclTranslationResourceHost::OnEnsurePnaclInstalledReply(
-    PP_Instance instance,
-    bool success) {
-  DCHECK(io_message_loop_->BelongsToCurrentThread());
-  // Broadcast to all listeners.
-  for (EnsurePnaclInstalledList::iterator
-           i = pending_ensure_pnacl_requests_.begin(),
-           e = pending_ensure_pnacl_requests_.end();
-       i != e; ++i) {
-    if (TrackedCallback::IsPending(*i)) {
-      PpapiGlobals::Get()->GetMainThreadMessageLoop()->PostTask(
-          FROM_HERE,
-          base::Bind(&TrackedCallback::Run,
-                     *i,
-                     static_cast<int32_t>(success ? PP_OK : PP_ERROR_FAILED)));
-    }
-  }
-  pending_ensure_pnacl_requests_.clear();
-}
-
-void PnaclTranslationResourceHost::CleanupEnsurePnaclRequests() {
-  DCHECK(io_message_loop_->BelongsToCurrentThread());
-  for (EnsurePnaclInstalledList::iterator
-           i = pending_ensure_pnacl_requests_.begin(),
-           e = pending_ensure_pnacl_requests_.end();
-       i != e; ++i) {
-    (*i)->PostAbort();
-  }
-  pending_ensure_pnacl_requests_.clear();
-}
-
 #endif  // DISABLE_NACL