History UI: Apply the pref that prohibits deleting browsing and download 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 <set>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 84 matching lines @@
 #else
 const char kIncognitoModeShortcut[] = "(Shift+Ctrl+N)";
 #endif
 
 // Identifiers for the type of device from which a history entry originated.
 static const char kDeviceTypeLaptop[] = "laptop";
 static const char kDeviceTypePhone[] = "phone";
 static const char kDeviceTypeTablet[] = "tablet";
 
 content::WebUIDataSource* CreateHistoryUIHTMLSource(Profile* profile) {
+  PrefService* prefs = profile->GetPrefs();
+
   content::WebUIDataSource* source =
       content::WebUIDataSource::Create(chrome::kChromeUIHistoryFrameHost);
   source->AddBoolean("isUserSignedIn",
-      !profile->GetPrefs()->GetString(prefs::kGoogleServicesUsername).empty());
+      !prefs->GetString(prefs::kGoogleServicesUsername).empty());
   source->AddLocalizedString("collapseSessionMenuItemText",
       IDS_NEW_TAB_OTHER_SESSIONS_COLLAPSE_SESSION);
   source->AddLocalizedString("expandSessionMenuItemText",
       IDS_NEW_TAB_OTHER_SESSIONS_EXPAND_SESSION);
   source->AddLocalizedString("restoreSessionMenuItemText",
       IDS_NEW_TAB_OTHER_SESSIONS_OPEN_ALL);
   source->AddLocalizedString("xMore", IDS_OTHER_DEVICES_X_MORE);
   source->AddLocalizedString("loading", IDS_HISTORY_LOADING);
   source->AddLocalizedString("title", IDS_HISTORY_TITLE);
   source->AddLocalizedString("newest", IDS_HISTORY_NEWEST);
@@ skipping 38 matching lines @@
                              IDS_HISTORY_HAS_SYNCED_RESULTS);
   source->AddLocalizedString("noSyncedResults", IDS_HISTORY_NO_SYNCED_RESULTS);
   source->AddLocalizedString("cancel", IDS_CANCEL);
   source->AddLocalizedString("deleteConfirm",
                              IDS_HISTORY_DELETE_PRIOR_VISITS_CONFIRM_BUTTON);
   source->AddBoolean("isFullHistorySyncEnabled",
                      WebHistoryServiceFactory::GetForProfile(profile) != NULL);
   source->AddBoolean("groupByDomain",
       CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kHistoryEnableGroupByDomain));
+  source->AddBoolean("allowDeletingHistory",
+      prefs->GetBoolean(prefs::kAllowDeletingBrowserHistory));
+
   source->SetJsonPath(kStringsJsFile);
   source->AddResourcePath(kHistoryJsFile, IDR_HISTORY_JS);
   source->AddResourcePath(kOtherDevicesJsFile, IDR_OTHER_DEVICES_JS);
   source->SetDefaultResource(IDR_HISTORY_HTML);
   source->SetUseJsonJSFormatV2();
   source->DisableDenyXFrameOptions();
 
 #if defined(OS_ANDROID) || defined(OS_IOS)
   source->AddBoolean("isManagedProfile", false);
 #else
@@ skipping 376 matching lines @@
   if (!ExtractIntegerValueAtIndex(args, 4, &options.max_count)) {
     NOTREACHED() << "Failed to convert argument 4.";
     return;
   }
 
   options.duplicate_policy = history::QueryOptions::REMOVE_DUPLICATES_PER_DAY;
   QueryHistory(search_text, options);
 }
 
 void BrowsingHistoryHandler::HandleRemoveVisits(const ListValue* args) {
-  if (delete_task_tracker_.HasTrackedTasks()) {
+  Profile* profile = Profile::FromWebUI(web_ui());
+  if (delete_task_tracker_.HasTrackedTasks() ||
+      !profile->GetPrefs()->GetBoolean(prefs::kAllowDeletingBrowserHistory)) {
     web_ui()->CallJavascriptFunction("deleteFailed");
     return;
   }
 
-  Profile* profile = Profile::FromWebUI(web_ui());
   HistoryService* history_service =
       HistoryServiceFactory::GetForProfile(profile, Profile::EXPLICIT_ACCESS);
   history::WebHistoryService* web_history =
       WebHistoryServiceFactory::GetForProfile(profile);
 
   base::Time now = base::Time::Now();
   std::vector<history::ExpireHistoryArgs> expire_list;
   expire_list.reserve(args->GetSize());
 
   for (ListValue::const_iterator it = args->begin(); it != args->end(); ++it) {
@@ skipping 602 matching lines @@
   return GURL(std::string(chrome::kChromeUIHistoryURL) + "#q=" +
               net::EscapeQueryParamValue(UTF16ToUTF8(text), true));
 }
 
 // static
 base::RefCountedMemory* HistoryUI::GetFaviconResourceBytes(
       ui::ScaleFactor scale_factor) {
   return ResourceBundle::GetSharedInstance().
       LoadDataResourceBytesForScale(IDR_HISTORY_FAVICON, scale_factor);
 }