Disable the "run all plugins" link on the plugins settings bubble if the setting is managed.

chrome/browser/ui/content_settings/content_setting_bubble_model.cc

Index: chrome/browser/ui/content_settings/content_setting_bubble_model.cc
diff --git a/chrome/browser/ui/content_settings/content_setting_bubble_model.cc b/chrome/browser/ui/content_settings/content_setting_bubble_model.cc
index 882eca24316cda6f9b0292c8749dd06052ab883a..6474930879684f6952d103e9285f80c9e899ffaf 100644
--- a/chrome/browser/ui/content_settings/content_setting_bubble_model.cc
+++ b/chrome/browser/ui/content_settings/content_setting_bubble_model.cc
@@ -361,6 +361,8 @@ void ContentSettingSingleRadioGroup::SetRadioGroup() {
     radio_group.default_item = 1;
     block_setting_ = setting;
   }
+
+  set_managed_setting(setting_source != SETTING_SOURCE_USER);
   if (setting_source != SETTING_SOURCE_USER) {
     set_radio_group_enabled(false);
   } else {
@@ -449,9 +451,16 @@ ContentSettingPluginBubbleModel::ContentSettingPluginBubbleModel(
     : ContentSettingSingleRadioGroup(
           delegate, web_contents, profile, content_type) {
   DCHECK_EQ(content_type, CONTENT_SETTINGS_TYPE_PLUGINS);
-  set_custom_link_enabled(web_contents &&
-                          TabSpecificContentSettings::FromWebContents(
-                              web_contents)->load_plugins_link_enabled());
+  // Disable the "Run all plugins this time" link if the setting is managed and
+  // can't be controlled by the user or if the user already clicked on the link
+  // and ran all plugins.
+  if (managed_setting()) {
+    set_custom_link_enabled(false);

[Bernhard Bauer, 2014/01/07 18:08:00]

There is a way to combine these logical expressions ("custom link is enabled
iff...") :)

[markusheintz_, 2014/01/07 18:42:22]

Done.

+  } else {
+    set_custom_link_enabled(web_contents &&
+                            TabSpecificContentSettings::FromWebContents(
+                                web_contents)->load_plugins_link_enabled());
+  }
 }
 
 ContentSettingPluginBubbleModel::~ContentSettingPluginBubbleModel() {
@@ -1263,7 +1272,8 @@ ContentSettingBubbleModel::ContentSettingBubbleModel(
     ContentSettingsType content_type)
     : web_contents_(web_contents),
       profile_(profile),
-      content_type_(content_type) {
+      content_type_(content_type),
+      managed_setting_(false) {
   registrar_.Add(this, content::NOTIFICATION_WEB_CONTENTS_DESTROYED,
                  content::Source<WebContents>(web_contents));
   registrar_.Add(this, chrome::NOTIFICATION_PROFILE_DESTROYED,