When forcing clear page data, no need to release colorspace when releasing pattern

core/src/fpdfapi/fpdf_page/fpdf_page_pattern.cpp

Index: core/src/fpdfapi/fpdf_page/fpdf_page_pattern.cpp
diff --git a/core/src/fpdfapi/fpdf_page/fpdf_page_pattern.cpp b/core/src/fpdfapi/fpdf_page/fpdf_page_pattern.cpp
index bcb81966622b830eb4ff10f6f08dd074e4324c2a..c277735ea9393f511cdda9a3dab83bc264fd33e1 100644
--- a/core/src/fpdfapi/fpdf_page/fpdf_page_pattern.cpp
+++ b/core/src/fpdfapi/fpdf_page/fpdf_page_pattern.cpp
@@ -13,6 +13,7 @@ CPDF_Pattern::CPDF_Pattern(const CFX_AffineMatrix* pParentMatrix) :
     if (pParentMatrix) {
         m_ParentMatrix = *pParentMatrix;
     }
+    m_bForceClear = FALSE;

[Tom Sepez, 2014/09/16 19:18:06]

nit:  I'd move this to the initializer list.

[jun_fang, 2014/09/16 19:24:38]

It should be initialized in the parameter list?

 }
 CPDF_Pattern::~CPDF_Pattern()
 {
@@ -97,7 +98,7 @@ void CPDF_ShadingPattern::Clear()
         m_pFunctions[i] = NULL;
     }
     CPDF_ColorSpace* pCS = m_pCS;
-    if (pCS && m_pDocument) {
+    if (!m_bForceClear && pCS && m_pDocument) {
         m_pDocument->GetPageData()->ReleaseColorSpace(pCS->GetArray());
     }
     m_ShadingType = 0;