Plugin Power Saver: Add back 'Click to play' option as 4th for plugins.

chrome/browser/prerender/prerender_browsertest.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 <deque>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 2061 matching lines @@
   HostContentSettingsMap* content_settings_map =
       current_browser()->profile()->GetHostContentSettingsMap();
   content_settings_map->SetDefaultContentSetting(
       CONTENT_SETTINGS_TYPE_PLUGINS, CONTENT_SETTING_DETECT_IMPORTANT_CONTENT);
 
   PrerenderTestURL("files/prerender/prerender_plugin_power_saver.html",
                    FINAL_STATUS_USED, 1);
   NavigateToDestURL();
 }
 
+// Checks that plugins are not loaded on prerendering pages when click-to-play
+// is enabled.
+IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, PrerenderClickToPlay) {
+  // Enable click-to-play.
+  HostContentSettingsMap* content_settings_map =
+      current_browser()->profile()->GetHostContentSettingsMap();
+  content_settings_map->SetDefaultContentSetting(CONTENT_SETTINGS_TYPE_PLUGINS,
+                                                 CONTENT_SETTING_ASK);
+
+  PrerenderTestURL("files/prerender/prerender_plugin_click_to_play.html",
+                   FINAL_STATUS_USED, 1);
+  NavigateToDestURL();
+}
+
 // Checks that we don't load a NaCl plugin when NaCl is disabled.
 IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, PrerenderNaClPluginDisabled) {
   PrerenderTestURL("files/prerender/prerender_plugin_nacl_disabled.html",
                    FINAL_STATUS_USED,
                    1);
   NavigateToDestURL();
 
 
   // Run this check again.  When we try to load aa ppapi plugin, the
   // "loadstart" event is asynchronously posted to a message loop.
@@ skipping 2489 matching lines @@
   TestShouldDisableLocalPredictorPreferenceNetworkMatrix(
       true /*preference_wifi_network_wifi*/,
       true /*preference_wifi_network_4g*/,
       true /*preference_always_network_wifi*/,
       false /*preference_always_network_4g*/,
       true /*preference_never_network_wifi*/,
       true /*preference_never_network_4g*/);
 }
 
 }  // namespace prerender