Moved the following IPC messages used by the chrome NPAPI plugin installer out of content

chrome/default_plugin/plugin_impl_gtk.cc

 // Copyright (c) 2010 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/default_plugin/plugin_impl_gtk.h"
 
-#include <gdk/gdkx.h>
+#include <X11/Xdefs.h>
+#include <gtk/gtk.h>
 
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/string_util.h"
+#include "chrome/common/chrome_plugin_messages.h"
 #include "chrome/default_plugin/plugin_main.h"
+#include "content/common/child_thread.h"
+#include "content/common/content_constants.h"
 #include "googleurl/src/gurl.h"
 #include "grit/webkit_strings.h"
 #include "unicode/locid.h"
 #include "webkit/plugins/npapi/default_plugin_shared.h"
 
 // TODO(thakis): Most methods in this class are stubbed out an need to be
 // implemented.
 
 PluginInstallerImpl::PluginInstallerImpl(int16 mode)
   : instance_(NULL),
@@ skipping 15 matching lines @@
 
   if (mime_type == NULL || strlen(mime_type) == 0) {
     DLOG(WARNING) << __FUNCTION__ << " Invalid parameters passed in";
     NOTREACHED();
     return false;
   }
 
   instance_ = instance;
   mime_type_ = mime_type;
 
-  return true;
+  return PluginInstallerBase::Initialize(module_handle, instance, mime_type,
+                                         argc, argn, argv);
 }
 
 bool PluginInstallerImpl::NPP_SetWindow(NPWindow* window_info) {
   if (container_)
     gtk_widget_destroy(container_);
   container_ = gtk_plug_new(reinterpret_cast<XID>(window_info->window));
 
   // Add label.
   GtkWidget* box = gtk_vbox_new(FALSE, 0);
   GtkWidget* label = gtk_label_new("Missing Plug-in");
@@ skipping 67 matching lines @@
 }
 
 void PluginInstallerImpl::DownloadCancelled() {
   DisplayAvailablePluginStatus();
 }
 
 void PluginInstallerImpl::ShowInstallDialog() {
 }
 
 void PluginInstallerImpl::NotifyPluginStatus(int status) {
-  default_plugin::g_browser->getvalue(
-      instance_,
-      static_cast<NPNVariable>(
-          webkit::npapi::default_plugin::kMissingPluginStatusStart + status),
-      NULL);
+  ChildThread::current()->Send(
+      new ChromePluginProcessHostMsg_MissingPluginStatus(
+          status,
+          renderer_process_id(),
+          render_view_id(),
+          0));
 }