Remove "Show saved copy" button from error page

chrome/browser/android/tab_android.cc

 // Copyright 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/android/tab_android.h"
 
 #include <stddef.h>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
@@ skipping 735 matching lines @@
                                    const JavaParamRef<jobject>& obj) {
   content::RenderFrameHost* render_frame_host =
       web_contents()->GetFocusedFrame();
   render_frame_host->Send(new ChromeViewMsg_RequestReloadImageForContextNode(
       render_frame_host->GetRoutingID()));
 }
 
 jlong TabAndroid::GetBookmarkId(JNIEnv* env,
                                 const JavaParamRef<jobject>& obj,
                                 jboolean only_editable) {
-  return GetBookmarkIdHelper(only_editable);
-}
-
-int64_t TabAndroid::GetBookmarkIdHelper(bool only_editable) const {
   GURL url = dom_distiller::url_utils::GetOriginalUrlFromDistillerUrl(
       web_contents()->GetURL());
   Profile* profile = GetProfile();
 
   // If the url points to an offline page, it already has a bookmark ID that it
   // is related to.
   int64_t candidate_bookmark_id =
       offline_pages::OfflinePageUtils::GetBookmarkIdForOfflineURL(profile, url);
 
   // Get all the nodes for |url| and sort them by date added.
@@ skipping 25 matching lines @@
 
 bool TabAndroid::HasOfflinePages() const {
   return offline_pages::OfflinePageUtils::HasOfflinePages(GetProfile());
 }
 
 void TabAndroid::ShowOfflinePages() {
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_Tab_showOfflinePages(env, weak_java_tab_.get(env).obj());
 }
 
-void TabAndroid::LoadOfflineCopy(const GURL& url) {
-  GURL offline_url = offline_pages::OfflinePageUtils::GetOfflineURLForOnlineURL(
-      GetProfile(), url);
-  if (!offline_url.is_valid())
-    return;
-
-  content::NavigationController::LoadURLParams load_params(offline_url);
-  web_contents()->GetController().LoadURLWithParams(load_params);
-}
-
 void TabAndroid::OnLoFiResponseReceived(bool is_preview) {
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_Tab_onLoFiResponseReceived(env, weak_java_tab_.get(env).obj(),
                                   is_preview);
 }
 
 jboolean TabAndroid::HasOfflineCopy(JNIEnv* env,
                                     const JavaParamRef<jobject>& obj) {
   GURL url = dom_distiller::url_utils::GetOriginalUrlFromDistillerUrl(
       web_contents()->GetURL());
@@ skipping 105 matching lines @@
 static void Init(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   TRACE_EVENT0("native", "TabAndroid::Init");
   // This will automatically bind to the Java object and pass ownership there.
   new TabAndroid(env, obj);
 }
 
 // static
 bool TabAndroid::RegisterTabAndroid(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }