Turn the FPSCounter namespace into a class.

Source/Core/VideoCommon/FPSCounter.h

@@ -4,15 +4,32 @@
 
 #pragma once
 
-namespace FPSCounter
+#include <fstream>
+
+#include "Common/Timer.h"
+
+class FPSCounter
 {
-// Initializes the FPS counter.
-void Initialize();
+public:
+	unsigned int m_fps;
 
-// Shutdown the FPS counter by closing the logs.
-void Shutdown();
+	// Initializes the FPS counter.
+	FPSCounter();
 
-// Called when a frame is rendered. Returns the value to be displayed on
-// screen as the FPS counter (updated every second).
-int Update();
-}
+	// Shutdown the FPS counter by closing the logs.
+	~FPSCounter();
+
+	// Called when a frame is rendered. Returns the value to be displayed on
+	// screen as the FPS counter (updated every second).
+	int Update();
+
+private:
+	unsigned int m_counter;
+	unsigned int m_fps_last_counter;
+	Common::Timer m_update_time;
+
+	Common::Timer m_render_time;
+	std::ofstream m_bench_file;
+
+	void LogRenderTimeToFile(u64 val);
+};