Revert of Convert NaCl renderer-loader messages to mojo.

components/nacl/renderer/trusted_plugin_channel.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/nacl/renderer/trusted_plugin_channel.h"
 
 #include "base/callback_helpers.h"
+#include "components/nacl/common/nacl_renderer_messages.h"
 #include "components/nacl/renderer/histogram.h"
 #include "components/nacl/renderer/nexe_load_manager.h"
+#include "content/public/renderer/render_thread.h"
+#include "ipc/ipc_sync_channel.h"
+#include "ipc/ipc_message_macros.h"
 #include "ppapi/c/pp_errors.h"
 
 namespace nacl {
 
 TrustedPluginChannel::TrustedPluginChannel(
     NexeLoadManager* nexe_load_manager,
-    mojom::NaClRendererHostRequest request,
+    const IPC::ChannelHandle& handle,
+    base::WaitableEvent* shutdown_event,
     bool is_helper_nexe)
     : nexe_load_manager_(nexe_load_manager),
-      binding_(this, std::move(request)),
       is_helper_nexe_(is_helper_nexe) {
-  binding_.set_connection_error_handler(base::Bind(
-      &TrustedPluginChannel::OnChannelError, base::Unretained(this)));
+  channel_ = IPC::SyncChannel::Create(
+      handle, IPC::Channel::MODE_CLIENT, this,
+      content::RenderThread::Get()->GetIOTaskRunner(), true, shutdown_event);
 }
 
 TrustedPluginChannel::~TrustedPluginChannel() {
 }
 
+bool TrustedPluginChannel::Send(IPC::Message* message) {
+  return channel_->Send(message);
+}
+
+bool TrustedPluginChannel::OnMessageReceived(const IPC::Message& msg) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(TrustedPluginChannel, msg)
+    IPC_MESSAGE_HANDLER(NaClRendererMsg_ReportExitStatus, OnReportExitStatus);
+    IPC_MESSAGE_HANDLER(NaClRendererMsg_ReportLoadStatus, OnReportLoadStatus);
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
 void TrustedPluginChannel::OnChannelError() {
   if (!is_helper_nexe_)
     nexe_load_manager_->NexeDidCrash();
 }
 
-void TrustedPluginChannel::ReportExitStatus(
-    int exit_status,
-    const ReportExitStatusCallback& callback) {
-  callback.Run();
+void TrustedPluginChannel::OnReportExitStatus(int exit_status) {
   if (!is_helper_nexe_)
     nexe_load_manager_->set_exit_status(exit_status);
 }
 
-void TrustedPluginChannel::ReportLoadStatus(
-    NaClErrorCode load_status,
-    const ReportLoadStatusCallback& callback) {
-  callback.Run();
+void TrustedPluginChannel::OnReportLoadStatus(NaClErrorCode load_status) {
   if (load_status < 0 || load_status > NACL_ERROR_CODE_MAX) {
     load_status = LOAD_STATUS_UNKNOWN;
   }
   // For now, we only report UMA for non-helper nexes
   // (don't report for the PNaCl translators nexes).
   if (!is_helper_nexe_) {
     HistogramEnumerate("NaCl.LoadStatus.SelLdr", load_status,
                        NACL_ERROR_CODE_MAX);
     // Gather data to see if being installed changes load outcomes.
     const char* name = nexe_load_manager_->is_installed()
                            ? "NaCl.LoadStatus.SelLdr.InstalledApp"
                            : "NaCl.LoadStatus.SelLdr.NotInstalledApp";
     HistogramEnumerate(name, load_status, NACL_ERROR_CODE_MAX);
   }
   if (load_status != LOAD_OK) {
     nexe_load_manager_->ReportLoadError(PP_NACL_ERROR_SEL_LDR_START_STATUS,
                                         NaClErrorString(load_status));
   }
 }
 
-void TrustedPluginChannel::ProvideExitControl(
-    mojom::NaClExitControlPtr exit_control) {
-  exit_control_ = std::move(exit_control);
-}
-
 }  // namespace nacl