pdf: Create a separate component for using the pdf pepper plugin.

chrome/browser/guest_view/web_view/chrome_web_view_guest_delegate.cc

Index: chrome/browser/guest_view/web_view/chrome_web_view_guest_delegate.cc
diff --git a/chrome/browser/guest_view/web_view/chrome_web_view_guest_delegate.cc b/chrome/browser/guest_view/web_view/chrome_web_view_guest_delegate.cc
index 8175022edca475e6ede42075a725f5070540ffb0..5c5e1cb7987849b1d5a9f0fef1c2558a9a6f484f 100644
--- a/chrome/browser/guest_view/web_view/chrome_web_view_guest_delegate.cc
+++ b/chrome/browser/guest_view/web_view/chrome_web_view_guest_delegate.cc
@@ -9,9 +9,10 @@
 #include "chrome/browser/favicon/favicon_tab_helper.h"
 #include "chrome/browser/guest_view/web_view/web_view_constants.h"
 #include "chrome/browser/renderer_context_menu/render_view_context_menu.h"
-#include "chrome/browser/ui/pdf/pdf_tab_helper.h"
+#include "chrome/browser/ui/pdf/chrome_pdf_tab_helper_delegate.h"
 #include "chrome/browser/ui/zoom/zoom_controller.h"
 #include "chrome/common/chrome_version_info.h"
+#include "components/pdf/browser/pdf_tab_helper.h"
 #include "components/renderer_context_menu/context_menu_delegate.h"
 #include "content/public/common/page_zoom.h"
 
@@ -84,7 +85,9 @@ void ChromeWebViewGuestDelegate::OnAttachWebViewHelpers(
   printing::PrintViewManagerBasic::CreateForWebContents(contents);
 #endif  // defined(ENABLE_FULL_PRINTING)
 #endif  // defined(ENABLE_PRINTING)
-  PDFTabHelper::CreateForWebContents(contents);
+  pdf::PDFTabHelper::CreateForWebContentsWithDelegate(
+      contents,
+      scoped_ptr<pdf::PDFTabHelperDelegate>(new ChromePDFTabHelperDelegate()));
 }
 
 void ChromeWebViewGuestDelegate::OnDidCommitProvisionalLoadForFrame(