Added new adaptive "Suggest" tab on the New Tab Page, behing the flag, for the experiments.

chrome/browser/ui/webui/ntp/new_tab_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 "build/build_config.h"
 
 #include "chrome/browser/ui/webui/ntp/new_tab_ui.h"
 
 #include <set>
 
@@ skipping 20 matching lines @@
 #include "chrome/browser/ui/webui/ntp/app_launcher_handler.h"
 #include "chrome/browser/ui/webui/ntp/favicon_webui_handler.h"
 #include "chrome/browser/ui/webui/ntp/foreign_session_handler.h"
 #include "chrome/browser/ui/webui/ntp/most_visited_handler.h"
 #include "chrome/browser/ui/webui/ntp/new_tab_page_handler.h"
 #include "chrome/browser/ui/webui/ntp/new_tab_page_sync_handler.h"
 #include "chrome/browser/ui/webui/ntp/ntp_login_handler.h"
 #include "chrome/browser/ui/webui/ntp/ntp_resource_cache_factory.h"
 #include "chrome/browser/ui/webui/ntp/ntp_resource_cache.h"
 #include "chrome/browser/ui/webui/ntp/recently_closed_tabs_handler.h"
+#include "chrome/browser/ui/webui/ntp/suggested_page_handler.h"
 #include "chrome/browser/ui/webui/theme_source.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/user_metrics.h"
@@ skipping 41 matching lines @@
   web_ui->OverrideTitle(l10n_util::GetStringUTF16(IDS_NEW_TAB_TITLE));
 
   // We count all link clicks as AUTO_BOOKMARK, so that site can be ranked more
   // highly. Note this means we're including clicks on not only most visited
   // thumbnails, but also clicks on recently bookmarked.
   web_ui->SetLinkTransitionType(content::PAGE_TRANSITION_AUTO_BOOKMARK);
 
   if (!GetProfile()->IsOffTheRecord()) {
     web_ui->AddMessageHandler(new browser_sync::ForeignSessionHandler());
     web_ui->AddMessageHandler(new MostVisitedHandler());
+    web_ui->AddMessageHandler(new SuggestedHandler());
     web_ui->AddMessageHandler(new RecentlyClosedTabsHandler());
     web_ui->AddMessageHandler(new MetricsHandler());
     if (GetProfile()->IsSyncAccessible())
       web_ui->AddMessageHandler(new NewTabPageSyncHandler());
     ExtensionService* service = GetProfile()->GetExtensionService();
     // We might not have an ExtensionService (on ChromeOS when not logged in
     // for example).
     if (service)
       web_ui->AddMessageHandler(new AppLauncherHandler(service));
 
@@ skipping 99 matching lines @@
   Profile* profile = GetProfile();
   ThemeSource* theme = new ThemeSource(profile);
   profile->GetChromeURLDataManager()->AddDataSource(theme);
 }
 
 // static
 void NewTabUI::RegisterUserPrefs(PrefService* prefs) {
   NewTabPageHandler::RegisterUserPrefs(prefs);
   AppLauncherHandler::RegisterUserPrefs(prefs);
   MostVisitedHandler::RegisterUserPrefs(prefs);
+  SuggestedHandler::RegisterUserPrefs(prefs);
 }
 
 // static
 void NewTabUI::SetupFieldTrials() {
   scoped_refptr<base::FieldTrial> trial(
       new base::FieldTrial("WebStoreLinkExperiment", 1000, "Disabled",
                            2012, 6, 1));
 
   // Try to give the user a consistent experience, if possible.
   if (base::FieldTrialList::IsOneTimeRandomizationEnabled())
@@ skipping 10 matching lines @@
     return true;
 
   if (!base::FieldTrialList::TrialExists(kWebStoreLinkExperiment))
     return false;
 
   return base::FieldTrialList::FindValue(kWebStoreLinkExperiment) !=
              base::FieldTrial::kDefaultGroupNumber;
 }
 
 // static
+bool NewTabUI::IsSuggestedPageEnabled() {
+  const CommandLine* cli = CommandLine::ForCurrentProcess();
+  if (cli->HasSwitch(switches::kEnableSuggestedTabPage))
+    return true;
+  return false;

[Dan Beam, 2012/02/09 01:43:06]

why not
  return CommandLine::ForCurrentProcess()->HasSwitch(
      switches::kEnableSuggestedTabPage);
?

[GeorgeY, 2012/02/10 00:00:36]

sure

+}
+
+// static
 void NewTabUI::SetURLTitleAndDirection(DictionaryValue* dictionary,
                                        const string16& title,
                                        const GURL& gurl) {
   dictionary->SetString("url", gurl.spec());
 
   bool using_url_as_the_title = false;
   string16 title_to_set(title);
   if (title_to_set.empty()) {
     using_url_as_the_title = true;
     title_to_set = UTF8ToUTF16(gurl.spec());
@@ skipping 60 matching lines @@
   SendResponse(request_id, html_bytes);
 }
 
 std::string NewTabUI::NewTabHTMLSource::GetMimeType(const std::string&) const {
   return "text/html";
 }
 
 bool NewTabUI::NewTabHTMLSource::ShouldReplaceExistingSource() const {
   return false;
 }