Always trust internal PDF viewer.

chrome/browser/ui/webui/plugins/plugins_handler.cc

 // Copyright 2016 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/webui/plugins/plugins_handler.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 240 matching lines @@
       // Update |active_plugin| and |group_enabled|.
       if (!active_plugin || (plugin_enabled && !group_enabled))
         active_plugin = group_plugin;
       group_enabled = plugin_enabled || group_enabled;
     }
 
     plugin_data->enabled_mode = mojo::String::From(
         GetPluginGroupEnabledMode(plugin_files, group_enabled));
 
     plugin_data->always_allowed = false;
+    plugin_data->trusted = false;
+
     if (group_enabled) {
-      const base::DictionaryValue* whitelist =
-          profile->GetPrefs()->GetDictionary(
-              prefs::kContentSettingsPluginWhitelist);
-      whitelist->GetBoolean(group_identifier, &plugin_data->always_allowed);
+      if (plugin_metadata->GetSecurityStatus(*active_plugin) ==
+          PluginMetadata::SECURITY_STATUS_FULLY_TRUSTED) {
+        plugin_data->trusted = true;
+        plugin_data->always_allowed = true;
+      } else {
+        const base::DictionaryValue* whitelist =
+            profile->GetPrefs()->GetDictionary(
+                prefs::kContentSettingsPluginWhitelist);
+        whitelist->GetBoolean(group_identifier, &plugin_data->always_allowed);
+      }
     }
 
     plugin_data->critical = false;
     plugin_data->update_url = "";
 #if defined(ENABLE_PLUGIN_INSTALLATION)
     bool out_of_date = plugin_metadata->GetSecurityStatus(*active_plugin) ==
                        PluginMetadata::SECURITY_STATUS_OUT_OF_DATE;
     plugin_data->critical = out_of_date;
     plugin_data->update_url = plugin_metadata->plugin_url().spec();
 #endif
@@ skipping 67 matching lines @@
   }
 
   if (plugins_enabled_by_policy)
     return "enabledByPolicy";
   if (plugins_disabled_by_policy)
     return "disabledByPolicy";
   if (plugins_managed_by_policy)
     return "managedByPolicy";
   return group_enabled ? "enabledByUser" : "disabledByUser";
 }