Some work on changing comments, log messages, and variable and function names to reflect that the plugins are not plugins anymore.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7170 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/VideoCommon/Src/Fifo.h

@@ -43,7 +43,7 @@ void ResetVideoBuffer();
 void Fifo_SetRendering(bool bEnabled);
 bool IsFifoProcesingData();
 
-// Implemented by the Video Plugin
+// Implemented by the Video Backend
 void VideoFifo_CheckAsyncRequest();
 void VideoFifo_CheckStateRequest();