Revert 156678 - Native messaging now uses the MessageService back-end.

chrome/browser/extensions/api/messaging/extension_message_port.cc

Index: chrome/browser/extensions/api/messaging/extension_message_port.cc
diff --git a/chrome/browser/extensions/api/messaging/extension_message_port.cc b/chrome/browser/extensions/api/messaging/extension_message_port.cc
deleted file mode 100644
index b0c4afc7abcb47b54a495c1b637c0e18ec0f3f15..0000000000000000000000000000000000000000
--- a/chrome/browser/extensions/api/messaging/extension_message_port.cc
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2012 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 "chrome/browser/extensions/api/messaging/extension_message_port.h"
-
-#include "chrome/browser/extensions/extension_host.h"
-#include "chrome/browser/extensions/extension_process_manager.h"
-#include "chrome/browser/extensions/extension_system.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/common/extensions/extension_messages.h"
-#include "content/public/browser/render_process_host.h"
-
-namespace extensions {
-
-ExtensionMessagePort::ExtensionMessagePort(content::RenderProcessHost* process,
-                                           int routing_id,
-                                           const std::string& extension_id)
-     : process_(process),
-       routing_id_(routing_id),
-       extension_id_(extension_id),
-       background_host_ptr_(NULL) {
-}
-
-void ExtensionMessagePort::DispatchOnConnect(
-    int dest_port_id,
-    const std::string& channel_name,
-    const std::string& tab_json,
-    const std::string& source_extension_id,
-    const std::string& target_extension_id) {
-  process_->Send(new ExtensionMsg_DispatchOnConnect(
-      routing_id_, dest_port_id, channel_name,
-      tab_json, source_extension_id, target_extension_id));
-}
-
-void ExtensionMessagePort::DispatchOnDisconnect(int source_port_id,
-                                                bool connection_error) {
-  process_->Send(new ExtensionMsg_DispatchOnDisconnect(
-      routing_id_, source_port_id, connection_error));
-}
-
-void ExtensionMessagePort::DispatchOnMessage(const std::string& message,
-                                             int target_port_id) {
-    process_->Send(new ExtensionMsg_DeliverMessage(
-        routing_id_, target_port_id, message));
-}
-
-void ExtensionMessagePort::IncrementLazyKeepaliveCount() {
-  Profile* profile =
-      Profile::FromBrowserContext(process_->GetBrowserContext());
-  ExtensionProcessManager* pm =
-      ExtensionSystem::Get(profile)->process_manager();
-  ExtensionHost* host = pm->GetBackgroundHostForExtension(extension_id_);
-  if (host && host->extension()->has_lazy_background_page())
-    pm->IncrementLazyKeepaliveCount(host->extension());
-
-  // Keep track of the background host, so when we decrement, we only do so if
-  // the host hasn't reloaded.
-  background_host_ptr_ = host;
-}
-
-void ExtensionMessagePort::DecrementLazyKeepaliveCount() {
-  Profile* profile =
-      Profile::FromBrowserContext(process_->GetBrowserContext());
-  ExtensionProcessManager* pm =
-      ExtensionSystem::Get(profile)->process_manager();
-  ExtensionHost* host = pm->GetBackgroundHostForExtension(extension_id_);
-  if (host && host == background_host_ptr_)
-    pm->DecrementLazyKeepaliveCount(host->extension());
-}
-
-content::RenderProcessHost* ExtensionMessagePort::GetRenderProcessHost() {
-  return process_;
-}
-
-}  // namespace extensions