Rename fpdfsdk/fpdfxfa files to match contents
Each of these files contains a single class, rename the file to match the
internal class name.
Review-Url: https://codereview.chromium.org/2385423004
diff --git a/fpdfsdk/cpdfsdk_annothandlermgr.cpp b/fpdfsdk/cpdfsdk_annothandlermgr.cpp
index 0fac080..32ff8d6 100644
--- a/fpdfsdk/cpdfsdk_annothandlermgr.cpp
+++ b/fpdfsdk/cpdfsdk_annothandlermgr.cpp
@@ -19,7 +19,7 @@
#ifdef PDF_ENABLE_XFA
#include "fpdfsdk/cpdfsdk_xfawidgethandler.h"
-#include "fpdfsdk/fpdfxfa/fpdfxfa_page.h"
+#include "fpdfsdk/fpdfxfa/cpdfxfa_page.h"
#include "xfa/fxfa/xfa_ffpageview.h"
#include "xfa/fxfa/xfa_ffwidget.h"
#endif // PDF_ENABLE_XFA