Re-land "Replace CPDF_Rect and CPDF_Point with CFX types."

fpdfsdk/src/pdfwindow/PWL_Button.cpp

Index: fpdfsdk/src/pdfwindow/PWL_Button.cpp
diff --git a/fpdfsdk/src/pdfwindow/PWL_Button.cpp b/fpdfsdk/src/pdfwindow/PWL_Button.cpp
index 5c78383380d675fe79f17c16771e7fdb42464916..2c6c36c047c7cd800b3808c0a58ab5ae284d9778 100644
--- a/fpdfsdk/src/pdfwindow/PWL_Button.cpp
+++ b/fpdfsdk/src/pdfwindow/PWL_Button.cpp
@@ -21,7 +21,8 @@ void CPWL_Button::OnCreate(PWL_CREATEPARAM& cp) {
   cp.eCursorType = FXCT_HAND;
 }
 
-FX_BOOL CPWL_Button::OnLButtonDown(const CPDF_Point& point, FX_DWORD nFlag) {
+FX_BOOL CPWL_Button::OnLButtonDown(const CFX_FloatPoint& point,
+                                   FX_DWORD nFlag) {
   CPWL_Wnd::OnLButtonDown(point, nFlag);
 
   m_bMouseDown = TRUE;
@@ -30,7 +31,7 @@ FX_BOOL CPWL_Button::OnLButtonDown(const CPDF_Point& point, FX_DWORD nFlag) {
   return TRUE;
 }
 
-FX_BOOL CPWL_Button::OnLButtonUp(const CPDF_Point& point, FX_DWORD nFlag) {
+FX_BOOL CPWL_Button::OnLButtonUp(const CFX_FloatPoint& point, FX_DWORD nFlag) {
   CPWL_Wnd::OnLButtonUp(point, nFlag);
 
   ReleaseCapture();