Set the minimum timer interval on a per-page basis, and adjust it when...

webkit/glue/webpreferences.cc

 // Copyright (c) 2009 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 "webkit/glue/webpreferences.h"
 
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebRuntimeFeatures.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebKit.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSettings.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebString.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebURL.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
+#include "webkit/glue/webkit_constants.h"
 #include "webkit/glue/webkit_glue.h"
 
 using WebKit::WebRuntimeFeatures;
 using WebKit::WebSettings;
 using WebKit::WebString;
 using WebKit::WebURL;
 using WebKit::WebView;
 
 WebPreferences::WebPreferences()
     : standard_font_family(ASCIIToUTF16("Times New Roman")),
@@ skipping 165 matching lines @@
        it != inspector_settings.end(); ++it)
     web_view->setInspectorSetting(WebString::fromUTF8(it->first),
                                   WebString::fromUTF8(it->second));
 
   // Tabs to link is not part of the settings. WebCore calls
   // ChromeClient::tabsToLinks which is part of the glue code.
   web_view->setTabsToLinks(tabs_to_links);
 
   settings->setInteractiveFormValidationEnabled(
       interactive_form_validation_enabled);
+
+  // Tabs start out hidden and are made visible.
+  settings->setMinimumTimerInterval(webkit_glue::kBackgroundTabTimerInterval);
 }