Make core/fxge/{fx_dib.h,dib/fx_dib_main.cpp} consistently named.

Prototypes and implementations should live in the same named
file in the same directory.

Mechanical change via mass-rename.py.

Change-Id: I07d1928792a1c1bb705152a9e1bfeb3ede5d6d26
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/75450
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
diff --git a/fxbarcode/cfx_barcode.h b/fxbarcode/cfx_barcode.h
index 14204ea..c8830e4 100644
--- a/fxbarcode/cfx_barcode.h
+++ b/fxbarcode/cfx_barcode.h
@@ -12,7 +12,7 @@
 #include "core/fxcrt/fx_coordinates.h"
 #include "core/fxcrt/fx_string.h"
 #include "core/fxcrt/fx_system.h"
-#include "core/fxge/fx_dib.h"
+#include "core/fxge/dib/fx_dib.h"
 #include "fxbarcode/BC_Library.h"
 
 class CBC_CodeBase;