diff --git a/src/base/http/types.h b/src/base/http/types.h
index c817dfa9b..2e16d9630 100644
--- a/src/base/http/types.h
+++ b/src/base/http/types.h
@@ -63,14 +63,10 @@ namespace Http
     const char HEADER_REQUEST_METHOD_POST[] = "POST";
 
     const char CONTENT_TYPE_HTML[] = "text/html";
-    const char CONTENT_TYPE_JS[] = "application/javascript";
     const char CONTENT_TYPE_JSON[] = "application/json";
-    const char CONTENT_TYPE_BMP[] = "image/bmp";
     const char CONTENT_TYPE_GIF[] = "image/gif";
-    const char CONTENT_TYPE_JPEG[] = "image/jpeg";
     const char CONTENT_TYPE_PNG[] = "image/png";
     const char CONTENT_TYPE_TXT[] = "text/plain";
-    const char CONTENT_TYPE_SVG[] = "image/svg+xml";
     const char CONTENT_TYPE_FORM_ENCODED[] = "application/x-www-form-urlencoded";
     const char CONTENT_TYPE_FORM_DATA[] = "multipart/form-data";
 
diff --git a/src/base/search/searchpluginmanager.cpp b/src/base/search/searchpluginmanager.cpp
index 1643cfc37..89d08c98e 100644
--- a/src/base/search/searchpluginmanager.cpp
+++ b/src/base/search/searchpluginmanager.cpp
@@ -29,6 +29,8 @@
 
 #include "searchpluginmanager.h"
 
+#include <memory>
+
 #include <QDebug>
 #include <QDir>
 #include <QDomDocument>
@@ -458,7 +460,7 @@ void SearchPluginManager::update()
         if (!engineElem.isNull()) {
             QString pluginName = engineElem.tagName();
 
-            PluginInfo *plugin = new PluginInfo;
+            std::unique_ptr<PluginInfo> plugin {new PluginInfo {}};
             plugin->name = pluginName;
             plugin->version = getPluginVersion(pluginPath(pluginName));
             plugin->fullName = engineElem.elementsByTagName("name").at(0).toElement().text();
@@ -473,15 +475,15 @@ void SearchPluginManager::update()
             QStringList disabledEngines = Preferences::instance()->getSearchEngDisabled();
             plugin->enabled = !disabledEngines.contains(pluginName);
 
-            updateIconPath(plugin);
+            updateIconPath(plugin.get());
 
             if (!m_plugins.contains(pluginName)) {
-                m_plugins[pluginName] = plugin;
+                m_plugins[pluginName] = plugin.release();
                 emit pluginInstalled(pluginName);
             }
             else if (m_plugins[pluginName]->version != plugin->version) {
                 delete m_plugins.take(pluginName);
-                m_plugins[pluginName] = plugin;
+                m_plugins[pluginName] = plugin.release();
                 emit pluginUpdated(pluginName);
             }
         }