Record offline histograms with suffix via Histogram::FactoryGet

chrome/browser/net/net_error_tab_helper.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/net/net_error_tab_helper.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/io_thread.h"
@@ skipping 10 matching lines @@
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/navigation_handle.h"
 #include "content/public/browser/render_frame_host.h"
 #include "ipc/ipc_message_macros.h"
 #include "net/base/net_errors.h"
 #include "url/gurl.h"
 
 #if BUILDFLAG(ANDROID_JAVA_UI)
 #include "chrome/browser/android/offline_pages/offline_page_model_factory.h"
 #include "chrome/browser/android/tab_android.h"
+#include "components/offline_pages/client_namespace_constants.h"
 #include "components/offline_pages/offline_page_feature.h"
 #include "components/offline_pages/offline_page_item.h"
 #include "components/offline_pages/offline_page_model.h"
 #endif  // BUILDFLAG(ANDROID_JAVA_UI)
 
 using content::BrowserContext;
 using content::BrowserThread;
 using content::WebContents;
 using content::WebContentsObserver;
 using error_page::DnsProbeStatus;
@@ skipping 260 matching lines @@
   if (!offline_pages::IsOfflinePagesEnabled())
     return;
 
   offline_pages::OfflinePageModel* offline_page_model =
       offline_pages::OfflinePageModelFactory::GetForBrowserContext(
           web_contents()->GetBrowserContext());
   if (!offline_page_model)
     return;
 
   offline_page_model->HasPages(
       offline_pages::kBookmarkNamespace,

[dewittj, 2016/05/31 23:12:01]

this seems wrong now.

[jianli, 2016/05/31 23:50:07]

This will be updated. For now, the offline related button is not shown.

       base::Bind(&NetErrorTabHelper::SetHasOfflinePages,
                  weak_factory_.GetWeakPtr(),
                  render_frame_host->GetFrameTreeNodeId()));
 }
 
 void NetErrorTabHelper::SetHasOfflinePages(int frame_tree_node_id,
                                            bool has_offline_pages) {
   content::RenderFrameHost* render_frame_host =
       web_contents()->FindFrameByFrameTreeNodeId(frame_tree_node_id);
   if (render_frame_host == nullptr)
@@ skipping 16 matching lines @@
 
 bool NetErrorTabHelper::IsFromErrorPage() const {
   content::NavigationEntry* entry =
       web_contents()->GetController().GetLastCommittedEntry();
   return entry && (entry->GetPageType() == content::PAGE_TYPE_ERROR);
 }
 
 #endif  // BUILDFLAG(ANDROID_JAVA_UI)
 
 }  // namespace chrome_browser_net