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

chrome/browser/ui/views/location_bar/open_pdf_in_reader_view.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/ui/views/location_bar/open_pdf_in_reader_view.h"
 
-#include "chrome/browser/ui/pdf/pdf_tab_helper.h"
 #include "chrome/browser/ui/views/open_pdf_in_reader_bubble_view.h"
+#include "components/pdf/browser/open_pdf_in_reader_prompt_delegate.h"
+#include "components/pdf/browser/pdf_tab_helper.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 #include "ui/accessibility/ax_view_state.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/views/widget/widget.h"
 
 OpenPDFInReaderView::OpenPDFInReaderView() : bubble_(NULL), model_(NULL) {
   SetAccessibilityFocusable(true);
   SetImage(ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
       IDR_OMNIBOX_PDF_ICON));
   SetTooltipText(l10n_util::GetStringUTF16(IDS_PDF_BUBBLE_OPEN_IN_READER_LINK));
 }
 
 OpenPDFInReaderView::~OpenPDFInReaderView() {
   if (bubble_)
     bubble_->GetWidget()->RemoveObserver(this);
 }
 
 void OpenPDFInReaderView::Update(content::WebContents* web_contents) {
   model_ = NULL;
   if (web_contents) {
-    PDFTabHelper* pdf_tab_helper = PDFTabHelper::FromWebContents(web_contents);
+    pdf::PDFTabHelper* pdf_tab_helper =
+        pdf::PDFTabHelper::FromWebContents(web_contents);
     model_ = pdf_tab_helper->open_in_reader_prompt();
   }
 
   SetVisible(!!model_);
 }
 
 void OpenPDFInReaderView::ShowBubble() {
   if (bubble_)
     return;
 
@@ skipping 29 matching lines @@
   return true;
 }
 
 void OpenPDFInReaderView::OnWidgetDestroying(views::Widget* widget) {
   if (!bubble_)
     return;
 
   bubble_->GetWidget()->RemoveObserver(this);
   bubble_ = NULL;
 }