Issue 1557 - Update to the recent libadblockplus to reduce additional updates in the logic later.

src/shared/ContentType.cpp

+#include "ContentType.h"
+
+// Based on impl from libadblockplus
+
+using AdblockPlus::FilterEngine;
+
+namespace
+{
+  typedef std::map<FilterEngine::ContentType, std::string> ContentTypeMap;
+  ContentTypeMap CreateContentTypeMap()
+  {
+    ContentTypeMap contentTypes;
+    contentTypes[FilterEngine::CONTENT_TYPE_OTHER] = "OTHER";
+    contentTypes[FilterEngine::CONTENT_TYPE_SCRIPT] = "SCRIPT";
+    contentTypes[FilterEngine::CONTENT_TYPE_IMAGE] = "IMAGE";
+    contentTypes[FilterEngine::CONTENT_TYPE_STYLESHEET] = "STYLESHEET";
+    contentTypes[FilterEngine::CONTENT_TYPE_OBJECT] = "OBJECT";
+    contentTypes[FilterEngine::CONTENT_TYPE_SUBDOCUMENT] = "SUBDOCUMENT";
+    contentTypes[FilterEngine::CONTENT_TYPE_DOCUMENT] = "DOCUMENT";
+    contentTypes[FilterEngine::CONTENT_TYPE_XMLHTTPREQUEST] = "XMLHTTPREQUEST";
+    contentTypes[FilterEngine::CONTENT_TYPE_OBJECT_SUBREQUEST] = "OBJECT_SUBREQUEST";
+    contentTypes[FilterEngine::CONTENT_TYPE_FONT] = "FONT";
+    contentTypes[FilterEngine::CONTENT_TYPE_MEDIA] = "MEDIA";
+    contentTypes[FilterEngine::CONTENT_TYPE_ELEMHIDE] = "ELEMHIDE";
+    return contentTypes;
+  }
+  const ContentTypeMap g_contentTypes = CreateContentTypeMap();
+}
+
+std::string ContentTypeToString(AdblockPlus::FilterEngine::ContentType contentType)
+{
+  ContentTypeMap::const_iterator it = g_contentTypes.find(contentType);
+  if (it != g_contentTypes.end())
+    return it->second;
+  throw std::invalid_argument("Argument is not a valid ContentType");
+}