Initialize CPDF_GeneralState::StateData in the header.

Change-Id: I7049073c09ac87ef8041bfa51740c653a67b4bd3
Reviewed-on: https://pdfium-review.googlesource.com/c/44543
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

core/fpdfapi/page/cpdf_generalstate.cpp

diff --git a/core/fpdfapi/page/cpdf_generalstate.cpp b/core/fpdfapi/page/cpdf_generalstate.cpp
index ea91273..7687626 100644
--- a/core/fpdfapi/page/cpdf_generalstate.cpp
+++ b/core/fpdfapi/page/cpdf_generalstate.cpp
@@ -6,7 +6,6 @@
 
 #include "core/fpdfapi/page/cpdf_generalstate.h"
 
-#include "constants/transparency.h"
 #include "core/fpdfapi/parser/cpdf_document.h"
 #include "core/fpdfapi/render/cpdf_dibbase.h"
 #include "core/fpdfapi/render/cpdf_docrenderdata.h"
@@ -259,28 +258,7 @@
   return &m_Ref.GetPrivateCopy()->m_Matrix;
 }
 
-CPDF_GeneralState::StateData::StateData()
-    : m_BlendMode(pdfium::transparency::kNormal),
-      m_BlendType(0),
-      m_StrokeAlpha(1.0),
-      m_FillAlpha(1.0f),
-      m_pTR(nullptr),
-      m_pTransferFunc(nullptr),
-      m_RenderIntent(0),
-      m_StrokeAdjust(false),
-      m_AlphaSource(false),
-      m_TextKnockout(false),
-      m_StrokeOP(false),
-      m_FillOP(false),
-      m_OPMode(0),
-      m_pBG(nullptr),
-      m_pUCR(nullptr),
-      m_pHT(nullptr),
-      m_Flatness(1.0f),
-      m_Smoothness(0.0f) {
-  m_SMaskMatrix.SetIdentity();
-  m_Matrix.SetIdentity();
-}
+CPDF_GeneralState::StateData::StateData() = default;
 
 CPDF_GeneralState::StateData::StateData(const StateData& that)
     : m_BlendMode(that.m_BlendMode),

core/fpdfapi/page/cpdf_generalstate.h

diff --git a/core/fpdfapi/page/cpdf_generalstate.h b/core/fpdfapi/page/cpdf_generalstate.h
index 9ee20db..096271f 100644
--- a/core/fpdfapi/page/cpdf_generalstate.h
+++ b/core/fpdfapi/page/cpdf_generalstate.h
@@ -7,6 +7,7 @@
 #ifndef CORE_FPDFAPI_PAGE_CPDF_GENERALSTATE_H_
 #define CORE_FPDFAPI_PAGE_CPDF_GENERALSTATE_H_
 
+#include "constants/transparency.h"
 #include "core/fxcrt/fx_coordinates.h"
 #include "core/fxcrt/fx_string.h"
 #include "core/fxcrt/shared_copy_on_write.h"
@@ -83,27 +84,27 @@
     StateData(const StateData& that);
     ~StateData() override;
 
-    ByteString m_BlendMode;
-    int m_BlendType;
+    ByteString m_BlendMode = pdfium::transparency::kNormal;
+    int m_BlendType = FXDIB_BLEND_NORMAL;
     UnownedPtr<CPDF_Object> m_pSoftMask;
     CFX_Matrix m_SMaskMatrix;
-    float m_StrokeAlpha;
-    float m_FillAlpha;
+    float m_StrokeAlpha = 1.0f;
+    float m_FillAlpha = 1.0f;
     UnownedPtr<const CPDF_Object> m_pTR;
     RetainPtr<CPDF_TransferFunc> m_pTransferFunc;
     CFX_Matrix m_Matrix;
-    int m_RenderIntent;
-    bool m_StrokeAdjust;
-    bool m_AlphaSource;
-    bool m_TextKnockout;
-    bool m_StrokeOP;
-    bool m_FillOP;
-    int m_OPMode;
+    int m_RenderIntent = 0;
+    bool m_StrokeAdjust = false;
+    bool m_AlphaSource = false;
+    bool m_TextKnockout = false;
+    bool m_StrokeOP = false;
+    bool m_FillOP = false;
+    int m_OPMode = 0;
     UnownedPtr<const CPDF_Object> m_pBG;
     UnownedPtr<const CPDF_Object> m_pUCR;
     UnownedPtr<const CPDF_Object> m_pHT;
-    float m_Flatness;
-    float m_Smoothness;
+    float m_Flatness = 1.0f;
+    float m_Smoothness = 0.0f;
   };
 
   SharedCopyOnWrite<StateData> m_Ref;