Make some members const in CPWL_Icon.

We can pass these at construct time, as they do not interact
with the intervening Realize() call.

Change-Id: Ifba7ebf3ba7ead9b41854ea4140aac3f1c3517b6
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/64071
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>

fpdfsdk/cpdfsdk_appstream.cpp

diff --git a/fpdfsdk/cpdfsdk_appstream.cpp b/fpdfsdk/cpdfsdk_appstream.cpp
index 8c4a969..50cd8c1 100644
--- a/fpdfsdk/cpdfsdk_appstream.cpp
+++ b/fpdfsdk/cpdfsdk_appstream.cpp
@@ -689,10 +689,8 @@
   CPWL_Wnd::CreateParams cp;
   cp.dwFlags = PWS_VISIBLE;
 
-  CPWL_Icon icon(cp, nullptr);
+  CPWL_Icon icon(cp, pIconStream, &fit);
   icon.Realize();
-  icon.SetIconFit(&fit);
-  icon.SetPDFStream(pIconStream);
   if (!icon.Move(rcIcon, false, false))
     return ByteString();
 

fpdfsdk/pwl/cpwl_icon.cpp

diff --git a/fpdfsdk/pwl/cpwl_icon.cpp b/fpdfsdk/pwl/cpwl_icon.cpp
index e64cadd..a720af4 100644
--- a/fpdfsdk/pwl/cpwl_icon.cpp
+++ b/fpdfsdk/pwl/cpwl_icon.cpp
@@ -16,10 +16,10 @@
 #include "core/fpdfdoc/cpdf_iconfit.h"
 #include "fpdfsdk/pwl/cpwl_wnd.h"
 
-CPWL_Icon::CPWL_Icon(
-    const CreateParams& cp,
-    std::unique_ptr<IPWL_SystemHandler::PerWindowData> pAttachedData)
-    : CPWL_Wnd(cp, std::move(pAttachedData)) {}
+CPWL_Icon::CPWL_Icon(const CreateParams& cp,
+                     CPDF_Stream* pStream,
+                     CPDF_IconFit* pFit)
+    : CPWL_Wnd(cp, nullptr), m_pPDFStream(pStream), m_pIconFit(pFit) {}
 
 CPWL_Icon::~CPWL_Icon() = default;
 

fpdfsdk/pwl/cpwl_icon.h

diff --git a/fpdfsdk/pwl/cpwl_icon.h b/fpdfsdk/pwl/cpwl_icon.h
index db654f8..3e19f84 100644
--- a/fpdfsdk/pwl/cpwl_icon.h
+++ b/fpdfsdk/pwl/cpwl_icon.h
@@ -19,13 +19,9 @@
 
 class CPWL_Icon final : public CPWL_Wnd {
  public:
-  CPWL_Icon(const CreateParams& cp,
-            std::unique_ptr<IPWL_SystemHandler::PerWindowData> pAttachedData);
+  CPWL_Icon(const CreateParams& cp, CPDF_Stream* pStream, CPDF_IconFit* pFit);
   ~CPWL_Icon() override;
 
-  void SetIconFit(CPDF_IconFit* pIconFit) { m_pIconFit = pIconFit; }
-  void SetPDFStream(CPDF_Stream* pStream) { m_pPDFStream.Reset(pStream); }
-
   // horizontal scale, vertical scale
   std::pair<float, float> GetScale();
 
@@ -42,8 +38,8 @@
   // width, height
   std::pair<float, float> GetImageSize();
 
-  RetainPtr<CPDF_Stream> m_pPDFStream;
-  UnownedPtr<CPDF_IconFit> m_pIconFit;
+  RetainPtr<CPDF_Stream> const m_pPDFStream;
+  UnownedPtr<CPDF_IconFit> const m_pIconFit;
 };
 
 #endif  // FPDFSDK_PWL_CPWL_ICON_H_