Fix uninitialized nresults in GetRGB

core/src/fpdfapi/fpdf_page/fpdf_page_colors.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "../../../include/fpdfapi/fpdf_page.h"
 #include "../../../include/fpdfapi/fpdf_module.h"
 #include "../../../include/fxcodec/fx_codec.h"
 #include "pageint.h"
@@ skipping 927 matching lines @@
         }
         int nComps = m_pAltCS->CountComponents();
         CFX_FixedBufGrow<FX_FLOAT, 16> results(nComps);
         for (int i = 0; i < nComps; i ++) {
             results[i] = *pBuf;
         }
         m_pAltCS->GetRGB(results, R, G, B);
         return TRUE;
     }
     CFX_FixedBufGrow<FX_FLOAT, 16> results(m_pFunc->CountOutputs());
-    int nresults;
+    int nresults = 0;
     m_pFunc->Call(pBuf, 1, results, nresults);
     if (nresults == 0) {
         return FALSE;
     }
     if (m_pAltCS) {
         m_pAltCS->GetRGB(results, R, G, B);
         return TRUE;
     } else {
         R = G = B = 0;
         return FALSE;
@@ skipping 434 matching lines @@
     PatternValue* pvalue = (PatternValue*)m_pBuffer;
     return pvalue->m_nComps ? pvalue->m_Comps : NULL;
 }
 FX_BOOL CPDF_Color::IsEqual(const CPDF_Color& other) const
 {
     if (m_pCS != other.m_pCS || m_pCS == NULL) {
         return FALSE;
     }
     return FXSYS_memcmp32(m_pBuffer, other.m_pBuffer, m_pCS->GetBufSize()) == 0;
 }