#4733 When moving the cache, the old cef_cache should be removed

indra/llrender/llshadermgr.cpp

@@ -1048,6 +1048,7 @@ void LLShaderMgr::clearShaderCache()
     LL_INFOS("ShaderMgr") << "Removing shader cache at " << shader_cache << LL_ENDL;
     const std::string mask = "*";
     gDirUtilp->deleteFilesInDir(shader_cache, mask);
+    LLFile::rmdir(shader_cache);
     mShaderBinaryCache.clear();
 }
 

indra/newview/llappviewer.cpp

@@ -4481,6 +4481,7 @@ void LLAppViewer::purgeCache()
     LLAppViewer::getTextureCache()->purgeCache(LL_PATH_CACHE);
     LLVOCache::getInstance()->removeCache(LL_PATH_CACHE);
     LLViewerShaderMgr::instance()->clearShaderCache();
+    purgeCefStaleCaches();
     gDirUtilp->deleteFilesInDir(gDirUtilp->getExpandedFilename(LL_PATH_CACHE, ""), "*");
 }