Remove dead code since PDFWebContentsHelper::ShowOpenInReaderPrompt isn't called anymore.

chrome/browser/ui/views/location_bar/location_bar_view.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_LOCATION_BAR_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_LOCATION_BAR_VIEW_H_
 
 #include <stddef.h>
 
 #include <string>
@@ skipping 18 matching lines @@
 #include "ui/gfx/geometry/rect.h"
 #include "ui/views/drag_controller.h"
 
 class CommandUpdater;
 class ContentSettingBubbleModelDelegate;
 class ContentSettingImageView;
 class ExtensionAction;
 class GURL;
 class KeywordHintView;
 class LocationIconView;
-class OpenPDFInReaderView;
 class ManagePasswordsIconViews;
 class PageActionWithBadgeView;
 class PageActionImageView;
 class Profile;
 class SelectedKeywordView;
 class StarView;
 class TemplateURLService;
 class TranslateIconView;
 class ZoomView;
 
@@ skipping 294 matching lines @@
   void AcceptInput() override;
   void FocusSearch() override;
   void UpdateContentSettingsIcons() override;
   void UpdateManagePasswordsIconAndBubble() override;
   void UpdateSaveCreditCardIcon() override;
   void UpdatePageActions() override;
   void UpdateBookmarkStarVisibility() override;
   void UpdateLocationBarVisibility(bool visible, bool animation) override;
   bool ShowPageActionPopup(const extensions::Extension* extension,
                            bool grant_active_tab) override;
-  void UpdateOpenPDFInReaderPrompt() override;
   void SaveStateToContents(content::WebContents* contents) override;
   const OmniboxView* GetOmniboxView() const override;
   LocationBarTesting* GetLocationBarForTesting() override;
 
   // LocationBarTesting:
   int PageActionCount() override;
   int PageActionVisibleCount() override;
   ExtensionAction* GetPageAction(size_t index) override;
   ExtensionAction* GetVisiblePageAction(size_t index) override;
   void TestPageActionPressed(size_t index) override;
@@ skipping 59 matching lines @@
 
   // Shown if the selected url has a corresponding keyword.
   KeywordHintView* keyword_hint_view_;
 
   // The content setting views.
   ContentSettingViews content_setting_views_;
 
   // The zoom icon.
   ZoomView* zoom_view_;
 
-  // The icon to open a PDF in Reader.
-  OpenPDFInReaderView* open_pdf_in_reader_view_;
-
   // The manage passwords icon.
   ManagePasswordsIconViews* manage_passwords_icon_view_;
 
   // The page action icon views.
   PageActionViews page_action_views_;
 
   // The save credit card icon.
   autofill::SaveCardIconView* save_credit_card_icon_view_;
 
   // The icon for Translate.
@@ skipping 21 matching lines @@
   BooleanPrefMember edit_bookmarks_enabled_;
 
   // This is a debug state variable that stores if the WebContents was null
   // during the last RefreshPageAction.
   bool web_contents_null_at_last_refresh_;
 
   DISALLOW_COPY_AND_ASSIGN(LocationBarView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_LOCATION_BAR_VIEW_H_