Reload favicon from HTTP cache on Ctrl+Refresh

extensions/browser/app_window/app_window.cc

 // Copyright 2014 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 "extensions/browser/app_window/app_window.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 522 matching lines @@
   image_loader_ptr_factory_.InvalidateWeakPtrs();
 
   // Reset |app_icon_image_| to abort pending image load (if any).
   app_icon_image_.reset();
 
   app_icon_url_ = url;
   web_contents()->DownloadImage(
       url,
       true,  // is a favicon
       0,     // no maximum size
+      blink::WebURLRequest::UseProtocolCachePolicy,
       base::Bind(&AppWindow::DidDownloadFavicon,
                  image_loader_ptr_factory_.GetWeakPtr()));
 }
 
 void AppWindow::SetBadgeIconUrl(const GURL& url) {
   // Avoid using any previous icons that were being downloaded.
   image_loader_ptr_factory_.InvalidateWeakPtrs();
 
   // Reset |app_icon_image_| to abort pending image load (if any).
   badge_icon_image_.reset();
 
   badge_icon_url_ = url;
   web_contents()->DownloadImage(
       url,
       true,  // is a favicon
       0,     // no maximum size
+      blink::WebURLRequest::UseProtocolCachePolicy,
       base::Bind(&AppWindow::DidDownloadFavicon,
                  image_loader_ptr_factory_.GetWeakPtr()));
 }
 
 void AppWindow::ClearBadge() {
   badge_icon_image_.reset();
   badge_icon_url_ = GURL();
   UpdateBadgeIcon(gfx::Image());
 }
 
@@ skipping 540 matching lines @@
         region.bounds.x(),
         region.bounds.y(),
         region.bounds.right(),
         region.bounds.bottom(),
         region.draggable ? SkRegion::kUnion_Op : SkRegion::kDifference_Op);
   }
   return sk_region;
 }
 
 }  // namespace extensions