Revert of Don't use barcodes in ProtocolPerfTests

remoting/test/frame_generator_util.h

Index: remoting/test/frame_generator_util.h
diff --git a/remoting/test/frame_generator_util.h b/remoting/test/frame_generator_util.h
index 719ce33e23fc0786992cc2785fc773776221bed4..e0f7c53422520e8d72c427e1652c32209701829c 100644
--- a/remoting/test/frame_generator_util.h
+++ b/remoting/test/frame_generator_util.h
@@ -24,6 +24,13 @@
               webrtc::DesktopRect rect,
               uint32_t color);
 
+// Draws barcode that encodes |value| on the |frame|. If |changed| is true then
+// frame->updated_region() will be updated as well.
+void DrawBarcode(int value, bool changed, webrtc::DesktopFrame* frame);
+
+// Reads barcode from the frame.
+int ReadBarcode(const webrtc::DesktopFrame& frame);
+
 }  // namespace test
 }  // namespace remoting