Enable PDF plugin for iframes within the print preview dialog.

chrome/browser/printing/print_preview_dialog_controller.cc

 // 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/printing/print_preview_dialog_controller.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
 #include "base/auto_reset.h"
 #include "base/path_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
-#include "chrome/browser/plugins/chrome_plugin_service_filter.h"
 #include "chrome/browser/printing/print_view_manager.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/browser_navigator.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/host_desktop.h"
 #include "chrome/browser/ui/webui/chrome_web_contents_handler.h"
 #include "chrome/browser/ui/webui/constrained_web_dialog_ui.h"
 #include "chrome/browser/ui/webui/print_preview/print_preview_ui.h"
-#include "chrome/common/chrome_content_client.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/url_constants.h"
 #include "components/web_modal/web_contents_modal_dialog_host.h"
 #include "content/public/browser/host_zoom_map.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_details.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_source.h"
-#include "content/public/browser/plugin_service.h"
-#include "content/public/browser/render_frame_host.h"
-#include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_delegate.h"
-#include "content/public/common/webplugininfo.h"
 #include "extensions/browser/guest_view/guest_view_base.h"
 #include "ui/web_dialogs/web_dialog_delegate.h"
 
 using content::NavigationController;
 using content::WebContents;
 using content::WebUIMessageHandler;
 
 namespace {
 
-void EnableInternalPDFPluginForContents(WebContents* preview_dialog) {
-  // Always enable the internal PDF plugin for the print preview page.
-  base::FilePath pdf_plugin_path = base::FilePath::FromUTF8Unsafe(
-      ChromeContentClient::kPDFPluginPath);
-
-  content::WebPluginInfo pdf_plugin;
-  if (!content::PluginService::GetInstance()->GetPluginInfoByPath(
-      pdf_plugin_path, &pdf_plugin))
-    return;
-
-  ChromePluginServiceFilter::GetInstance()->OverridePluginForFrame(
-      preview_dialog->GetRenderProcessHost()->GetID(),
-      preview_dialog->GetMainFrame()->GetRoutingID(),
-      GURL(), pdf_plugin);
-}
-
 // A ui::WebDialogDelegate that specifies the print preview dialog appearance.
 class PrintPreviewDialogDelegate : public ui::WebDialogDelegate {
  public:
   explicit PrintPreviewDialogDelegate(WebContents* initiator);
   ~PrintPreviewDialogDelegate() override;
 
   ui::ModalType GetDialogModalType() const override;
   base::string16 GetDialogTitle() const override;
   GURL GetDialogContentURL() const override;
   void GetWebUIMessageHandlers(
@@ skipping 305 matching lines @@
                                initiator);
 
   WebContents* preview_dialog = web_dialog_delegate->GetWebContents();
 
   // Clear the zoom level for the print preview dialog so it isn't affected by
   // the default zoom level. This also controls the zoom level of the OOP PDF
   // extension when iframed by the print preview dialog.
   GURL print_url(chrome::kChromeUIPrintURL);
   content::HostZoomMap::Get(preview_dialog->GetSiteInstance())
       ->SetZoomLevelForHostAndScheme(print_url.scheme(), print_url.host(), 0);
-  EnableInternalPDFPluginForContents(preview_dialog);
   PrintViewManager::CreateForWebContents(preview_dialog);
   extensions::ChromeExtensionWebContentsObserver::CreateForWebContents(
       preview_dialog);
 
   // Add an entry to the map.
   preview_dialog_map_[preview_dialog] = initiator;
   waiting_for_new_preview_page_ = true;
 
   AddObservers(initiator);
   AddObservers(preview_dialog);
@@ skipping 83 matching lines @@
         static_cast<PrintPreviewUI*>(web_ui->GetController());
     if (print_preview_ui)
       print_preview_ui->OnPrintPreviewDialogDestroyed();
   }
 
   preview_dialog_map_.erase(preview_dialog);
   RemoveObservers(preview_dialog);
 }
 
 }  // namespace printing