Force set the new tab title in instant extended.

chrome/browser/ui/search/search_tab_helper.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/ui/search/search_tab_helper.h"
 
 #include "chrome/browser/search/search.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
+#include "grit/generated_resources.h"
+#include "ui/base/l10n/l10n_util.h"
 
 DEFINE_WEB_CONTENTS_USER_DATA_KEY(SearchTabHelper);
 
 namespace {
 
 bool IsNTP(const content::WebContents* contents) {
   // We can't use WebContents::GetURL() because that uses the active entry,
   // whereas we want the visible entry.
   const content::NavigationEntry* entry =
       contents->GetController().GetVisibleEntry();
@@ skipping 63 matching lines @@
 
 void SearchTabHelper::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   DCHECK_EQ(content::NOTIFICATION_NAV_ENTRY_COMMITTED, type);
   UpdateMode();
   last_known_most_visited_items_.clear();
 }
 
+void SearchTabHelper::DidNavigateMainFrame(
+    const content::LoadCommittedDetails& details,
+    const content::FrameNavigateParams& params) {
+  // Always set the title on the new tab page to be the one from our UI
+  // resources.  Normally, we set the title when we begin a NTP load, but it
+  // can get reset in several places (like when you press Reload). This check
+  // ensures that the title is properly set to the string defined by the Chrome
+  // UI language (rather than the server language) in all cases.
+  //
+  // We only override the title when it's nonempty to allow the page to set the
+  // title if it really wants. An empty title means to use the default. There's
+  // also a race condition between this code and the page's SetTitle call which
+  // this rule avoids.
+  content::NavigationEntry* entry =
+      web_contents_->GetController().GetActiveEntry();
+  if (entry && entry->GetTitle().empty() &&
+      (entry->GetVirtualURL() == GURL(chrome::kChromeUINewTabURL) ||
+       chrome::NavEntryIsInstantNTP(web_contents_, entry))) {
+    entry->SetTitle(l10n_util::GetStringUTF16(IDS_NEW_TAB_TITLE));
+  }
+}
+
 bool SearchTabHelper::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(SearchTabHelper, message)
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_SearchBoxShowBars,
                         OnSearchBoxShowBars)
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_SearchBoxHideBars,
                         OnSearchBoxHideBars)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
@@ skipping 31 matching lines @@
   if (web_contents()->IsActiveEntry(page_id))
     model_.SetTopBarsVisible(true);
 }
 
 void SearchTabHelper::OnSearchBoxHideBars(int page_id) {
   if (web_contents()->IsActiveEntry(page_id)) {
     model_.SetTopBarsVisible(false);
     Send(new ChromeViewMsg_SearchBoxBarsHidden(routing_id()));
   }
 }