Reduce unbearable notification span when a plugin fails to load

indra/newview/llviewermedia.cpp

@@ -1551,16 +1551,22 @@ void LLViewerMedia::proxyWindowClosed(const std::string &uuid)
 // static
 void LLViewerMedia::createSpareBrowserMediaSource()
 {
+	static bool failedLoading = false;
+
 	// If we don't have a spare browser media source, create one.
 	// However, if PluginAttachDebuggerToPlugins is set then don't spawn a spare
 	// SLPlugin process in order to not be confused by an unrelated gdb terminal
 	// popping up at the moment we start a media plugin.
-	if (!sSpareBrowserMediaSource && !gSavedSettings.getBOOL("PluginAttachDebuggerToPlugins"))
+	if (!failedLoading && !sSpareBrowserMediaSource && !gSavedSettings.getBOOL("PluginAttachDebuggerToPlugins"))
 	{
 		// The null owner will keep the browser plugin from fully initializing 
 		// (specifically, it keeps LLPluginClassMedia from negotiating a size change, 
 		// which keeps MediaPluginWebkit::initBrowserWindow from doing anything until we have some necessary data, like the background color)
 		sSpareBrowserMediaSource = LLViewerMediaImpl::newSourceFromMediaType("text/html", NULL, 0, 0);
+		if (!sSpareBrowserMediaSource)
+		{
+			failedLoading = true;
+		}
 	}
 }
 
@@ -1916,10 +1922,11 @@ LLPluginClassMedia* LLViewerMediaImpl::newSourceFromMediaType(std::string media_
 	}
 	
 	LL_WARNS_ONCE("Plugin") << "plugin initialization failed for mime type: " << media_type << LL_ENDL;
+	/* There is a reason why ^^ is ONCE
 	LLSD args;
 	args["MIME_TYPE"] = media_type;
 	LLNotificationsUtil::add("NoPlugin", args);
-
+	*/
 	return NULL;
 }