Get rid of synchronous calls to getting plugins to help with http://codereview.chromium.org/79800...

chrome/browser/printing/print_preview_tab_controller.cc

 // Copyright (c) 2011 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/printing/print_preview_tab_controller.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/utf_string_conversions.h"
@@ skipping 10 matching lines @@
 #include "chrome/browser/ui/webui/print_preview_ui.h"
 #include "chrome/common/chrome_content_client.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/url_constants.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/tab_contents/navigation_details.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "content/common/content_notification_types.h"
 #include "content/common/notification_details.h"
 #include "content/common/notification_source.h"
-#include "webkit/plugins/npapi/plugin_group.h"
-#include "webkit/plugins/npapi/plugin_list.h"
 #include "webkit/plugins/webplugininfo.h"
 
-using webkit::npapi::PluginGroup;
-using webkit::npapi::PluginList;
-using webkit::WebPluginInfo;
-
 namespace {
 
 void EnableInternalPDFPluginForTab(TabContentsWrapper* preview_tab) {
   // Always enable the internal PDF plugin for the print preview page.
-  string16 internal_pdf_group_name(
-      ASCIIToUTF16(chrome::ChromeContentClient::kPDFPluginName));
-  PluginGroup* internal_pdf_group = NULL;
-  std::vector<PluginGroup> plugin_groups;
-  PluginList::Singleton()->GetPluginGroups(false, &plugin_groups);
-  for (size_t i = 0; i < plugin_groups.size(); ++i) {
-    if (plugin_groups[i].GetGroupName() == internal_pdf_group_name) {
-      internal_pdf_group = &plugin_groups[i];
-      break;
-    }
-  }
-  if (internal_pdf_group) {
-    const std::vector<WebPluginInfo>& plugins =
-        internal_pdf_group->web_plugin_infos();
-    DCHECK_EQ(plugins.size(), 1U);
-
-    webkit::WebPluginInfo plugin = plugins[0];
-    ChromePluginServiceFilter::GetInstance()->OverridePluginForTab(
+  ChromePluginServiceFilter::GetInstance()->OverridePluginForTab(
         preview_tab->render_view_host()->process()->id(),
         preview_tab->render_view_host()->routing_id(),
         GURL(),
-        plugin);
-  }
+        ASCIIToUTF16(chrome::ChromeContentClient::kPDFPluginName));
 }
 
 void ResetPreviewTabOverrideTitle(TabContentsWrapper* preview_tab) {
   preview_tab->print_view_manager()->ResetTitleOverride();
 }
 
 }  // namespace
 
 namespace printing {
 
@@ skipping 313 matching lines @@
   RenderProcessHost* rph = tab->render_view_host()->process();
   if (registrar_.IsRegistered(this,
                               content::NOTIFICATION_RENDERER_PROCESS_CLOSED,
                               Source<RenderProcessHost>(rph))) {
     registrar_.Remove(this, content::NOTIFICATION_RENDERER_PROCESS_CLOSED,
                       Source<RenderProcessHost>(rph));
   }
 }
 
 }  // namespace printing