Add a testing switch to override the query for other forms of browsing history

chrome/browser/ui/webui/history_ui.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/ui/webui/history_ui.h"
 
 #include "base/command_line.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/history/web_history_service_factory.h"
 #include "chrome/browser/prefs/incognito_mode_prefs.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/browser/ui/webui/browsing_history_handler.h"
 #include "chrome/browser/ui/webui/metrics_handler.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/grit/generated_resources.h"
+#include "components/browsing_data_ui/history_notice_utils.h"
 #include "components/prefs/pref_service.h"
 #include "components/search/search.h"
 #include "components/signin/core/browser/signin_manager.h"
+#include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_ui.h"
 #include "content/public/browser/web_ui_data_source.h"
+#include "content/public/common/referrer.h"
 #include "grit/browser_resources.h"
 #include "grit/components_scaled_resources.h"
 #include "grit/components_strings.h"
 #include "grit/theme_resources.h"
 #include "ui/base/l10n/l10n_util.h"
+#include "ui/base/page_transition_types.h"
 #include "ui/base/resource/resource_bundle.h"
 
 #if !defined(OS_ANDROID)
 #include "chrome/browser/ui/webui/foreign_session_handler.h"
 #include "chrome/browser/ui/webui/history_login_handler.h"
 #endif
 
 static const char kStringsJsFile[] = "strings.js";
 static const char kHistoryJsFile[] = "history.js";
 static const char kOtherDevicesJsFile[] = "other_devices.js";
@@ skipping 121 matching lines @@
   source->AddResourcePath(kHistoryJsFile, IDR_HISTORY_JS);
   source->AddResourcePath(kOtherDevicesJsFile, IDR_OTHER_DEVICES_JS);
   source->SetDefaultResource(IDR_HISTORY_HTML);
   source->DisableDenyXFrameOptions();
 
   return source;
 }
 
 }  // namespace
 
-HistoryUI::HistoryUI(content::WebUI* web_ui) : WebUIController(web_ui) {
+HistoryUI::HistoryUI(content::WebUI* web_ui)
+    : WebUIController(web_ui),
+      WebContentsObserver(web_ui->GetWebContents()) {
   web_ui->AddMessageHandler(new BrowsingHistoryHandler());
   web_ui->AddMessageHandler(new MetricsHandler());
 
   // On mobile we deal with foreign sessions differently.
 #if !defined(OS_ANDROID)
   if (search::IsInstantExtendedAPIEnabled()) {
     web_ui->AddMessageHandler(new browser_sync::ForeignSessionHandler());
     web_ui->AddMessageHandler(new HistoryLoginHandler());
   }
 #endif
 
   // Set up the chrome://history-frame/ source.
   Profile* profile = Profile::FromWebUI(web_ui);
   content::WebUIDataSource::Add(profile, CreateHistoryUIHTMLSource(profile));
 }
 
 HistoryUI::~HistoryUI() {}
 
 // static
 base::RefCountedMemory* HistoryUI::GetFaviconResourceBytes(
       ui::ScaleFactor scale_factor) {
   return ResourceBundle::GetSharedInstance().
       LoadDataResourceBytesForScale(IDR_HISTORY_FAVICON, scale_factor);
 }
+
+void HistoryUI::DidStopLoading() {
+   // TODO(crbug.com/595332): Since the API to query other forms of browsing
+   // history is not ready yet, make it possible to test the history UI as if
+   // it were. If the user opens chrome://history/?reset_ofbh, we will assume
+   // that other forms of browsing history exist (for all accounts), and we will
+   // also reset the one-time notice shown in the Clear Browsing Data dialog.
+   // This code should be removed as soon as the API is ready.
+   GURL url = web_ui()->GetWebContents()->GetVisibleURL();
+   if (!url.is_valid() || url.query() != "reset_ofbh")
+     return;
+
+   Profile::FromWebUI(web_ui())->GetPrefs()->SetInteger(
+       prefs::kClearBrowsingDataHistoryNoticeShownTimes, 0);
+   base::CommandLine::ForCurrentProcess()->AppendSwitch(
+       browsing_data_ui::switches::kOverrideOtherFormsOfBrowsingHistoryQuery);
+   web_ui()->GetWebContents()->GetController().LoadURL(
+       GURL(chrome::kChromeUIHistoryURL),
+       content::Referrer(),
+       ui::PAGE_TRANSITION_CLIENT_REDIRECT,
+       std::string());
+}