Make code compile with clang_use_chrome_plugin (part VI)

This change mainly contains files in xfa/fwl directory.
This is part of the efforts to make PDFium code compilable
by Clang chromium style plugins.

The changes are mainly the following:
-- move inline constructor/destructor of complex class/struct out-of-line;
-- add constructor/destructor of complex class/struct if not
 explicitly defined;
-- add explicit out-of-line copy constructor when needed;
-- move inline virtual functions out-of-line;
-- Properly mark virtual functions with 'override';
-- some minor cleanups;

BUG=pdfium:469

Review-Url: https://codereview.chromium.org/2070583003

1 files changed, 13 insertions, 0 deletions

diff --git a/xfa/fwl/basewidget/fwl_monthcalendarimp.cpp b/xfa/fwl/basewidget/fwl_monthcalendarimp.cpp
index ae5e71780b..209a857dad 100644
--- a/xfa/fwl/basewidget/fwl_monthcalendarimp.cpp
+++ b/xfa/fwl/basewidget/fwl_monthcalendarimp.cpp
@@ -1197,3 +1197,16 @@ void CFWL_MonthCalendarImpDelegate::OnMouseLeave(CFWL_MsgMouse* pMsg) {
     }
   }
 }
+
+FWL_DATEINFO::FWL_DATEINFO(int32_t day,
+                           int32_t dayofweek,
+                           uint32_t dwSt,
+                           CFX_RectF rc,
+                           CFX_WideString& wsday)
+    : iDay(day),
+      iDayOfWeek(dayofweek),
+      dwStates(dwSt),
+      rect(rc),
+      wsDay(wsday) {}
+
+FWL_DATEINFO::~FWL_DATEINFO() {}