Remove header files that only have includes.

fpdfsdk/src/pdfwindow/PWL_IconList.cpp

Index: fpdfsdk/src/pdfwindow/PWL_IconList.cpp
diff --git a/fpdfsdk/src/pdfwindow/PWL_IconList.cpp b/fpdfsdk/src/pdfwindow/PWL_IconList.cpp
index 6a627d7e9248446402dd50cf6f67cf4747573631..c6849d06831c28610457c94a82071fd83708515a 100644
--- a/fpdfsdk/src/pdfwindow/PWL_IconList.cpp
+++ b/fpdfsdk/src/pdfwindow/PWL_IconList.cpp
@@ -4,21 +4,20 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#include "fpdfsdk/include/pdfwindow/PDFWindow.h"
 #include "fpdfsdk/include/pdfwindow/PWL_IconList.h"
+
 #include "fpdfsdk/include/pdfwindow/PWL_Label.h"
 #include "fpdfsdk/include/pdfwindow/PWL_ListCtrl.h"
 #include "fpdfsdk/include/pdfwindow/PWL_ScrollBar.h"
 #include "fpdfsdk/include/pdfwindow/PWL_Utils.h"
 #include "fpdfsdk/include/pdfwindow/PWL_Wnd.h"
+#include "public/fpdf_fwlevent.h"
 
 #define PWL_IconList_ITEM_ICON_LEFTMARGIN 10.0f
 #define PWL_IconList_ITEM_WIDTH 20.0f
 #define PWL_IconList_ITEM_HEIGHT 20.0f
 #define PWL_IconList_ITEM_SPACE 4.0f
 
-/* ------------------ CPWL_IconList_Item ------------------- */
-
 CPWL_IconList_Item::CPWL_IconList_Item()
     : m_nIconIndex(-1), m_pData(NULL), m_bSelected(FALSE), m_pText(NULL) {}
 
@@ -128,8 +127,6 @@ void CPWL_IconList_Item::OnDisabled() {
   InvalidateRect();
 }
 
-/* ----------------- CPWL_IconList_Content ----------------- */
-
 CPWL_IconList_Content::CPWL_IconList_Content(int32_t nListCount)
     : m_nSelectIndex(-1),
       m_pNotify(NULL),
@@ -348,8 +345,6 @@ void CPWL_IconList_Content::SetIconFillColor(const CPWL_Color& color) {
   }
 }
 
-/* -------------------- CPWL_IconList --------------------- */
-
 CPWL_IconList::CPWL_IconList(int32_t nListCount)
     : m_pListContent(NULL), m_nListCount(nListCount) {}