Remove unused feedback class in dom distiller component

components/dom_distiller/core/dom_distiller_request_view_base.cc

 // Copyright 2015 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 "components/dom_distiller/core/dom_distiller_request_view_base.h"
 
 #include <memory>
 #include <sstream>
 #include <string>
 #include <utility>
@@ skipping 38 matching lines @@
     std::string text_direction;
     if (article_proto->pages().size() > 0) {
       text_direction = article_proto->pages(0).text_direction();
     } else {
       text_direction = "auto";
     }
     // Send first page, title, and text direction to client.
     SendJavaScript(viewer::GetSetTitleJs(article_proto->title()));
     SendJavaScript(viewer::GetSetTextDirectionJs(text_direction));
     SendJavaScript(viewer::GetUnsafeArticleContentJs(article_proto));
-    // If any content was loaded, show the feedback form.
-    if (ShouldShowFeedbackForm()) {
-      SendJavaScript(viewer::GetShowFeedbackFormJs());
-    }
   } else {
     // It's possible that we didn't get some incremental updates from the
     // distiller. Ensure all remaining pages are flushed to the viewer.
     for (; page_count_ < article_proto->pages_size(); page_count_++) {
       const DistilledPageProto& page = article_proto->pages(page_count_);
       SendJavaScript(viewer::GetUnsafeIncrementalDistilledPageJs(
           &page, page_count_ == article_proto->pages_size()));
     }
   }
   // We may still be showing the "Loading" indicator.
@@ skipping 11 matching lines @@
     // Send the page content to the client. This will execute after the page is
     // ready.
     SendJavaScript(viewer::GetUnsafeIncrementalDistilledPageJs(
         &page, !article_update.HasNextPage()));
 
     if (page_count_ == 0) {
       // This is the first page, so send the title and text direction to the
       // client.
       SendJavaScript(viewer::GetSetTitleJs(page.title()));
       SendJavaScript(viewer::GetSetTextDirectionJs(page.text_direction()));
-      // If any content was loaded, show the feedback form.
-      if (ShouldShowFeedbackForm()) {
-        SendJavaScript(viewer::GetShowFeedbackFormJs());
-      }
     }
   }
 }
 
 void DomDistillerRequestViewBase::OnChangeTheme(
     DistilledPagePrefs::Theme new_theme) {
   SendJavaScript(viewer::GetDistilledPageThemeJs(new_theme));
 }
 
 void DomDistillerRequestViewBase::OnChangeFontFamily(
@@ skipping 13 matching lines @@
   SendCommonJavaScript();
 }
 
 void DomDistillerRequestViewBase::SendCommonJavaScript() {
   SendJavaScript(viewer::GetJavaScript());
   SendJavaScript(viewer::GetDistilledPageFontScalingJs(
       distilled_page_prefs_->GetFontScaling()));
 }
 
 }  // namespace dom_distiller