Make code compile with clang_use_chrome_plugin (part I)

core/fpdfapi/fpdf_render/fpdf_render_cache.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 "core/fpdfapi/fpdf_render/cpdf_pagerendercache.h"
 
 #include "core/fpdfapi/fpdf_page/include/cpdf_page.h"
 #include "core/fpdfapi/fpdf_page/pageint.h"
 #include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
 #include "core/fpdfapi/fpdf_render/include/cpdf_rendercontext.h"
 #include "core/fpdfapi/fpdf_render/render_int.h"
 #include "core/fxge/include/fx_ge.h"
 
 struct CACHEINFO {
   uint32_t time;
   CPDF_Stream* pStream;
 };
 
 extern "C" {
 static int compare(const void* data1, const void* data2) {
   return ((CACHEINFO*)data1)->time - ((CACHEINFO*)data2)->time;
 }
 }  // extern "C"
 
+CPDF_PageRenderCache::CPDF_PageRenderCache(CPDF_Page* pPage)
+    : m_pPage(pPage),
+      m_pCurImageCacheEntry(nullptr),
+      m_nTimeCount(0),
+      m_nCacheSize(0),
+      m_bCurFindCache(FALSE) {}
+
 CPDF_PageRenderCache::~CPDF_PageRenderCache() {
   for (const auto& it : m_ImageCache)
     delete it.second;
 }
 void CPDF_PageRenderCache::CacheOptimization(int32_t dwLimitCacheSize) {
   if (m_nCacheSize <= (uint32_t)dwLimitCacheSize)
     return;
 
   size_t nCount = m_ImageCache.size();
   CACHEINFO* pCACHEINFO = FX_Alloc(CACHEINFO, nCount);
@@ skipping 281 matching lines @@
     m_pCurBitmap = nullptr;
     return 0;
   }
   ContinueGetCachedBitmap();
   return 0;
 }
 void CPDF_ImageCacheEntry::CalcSize() {
   m_dwCacheSize = FPDF_ImageCache_EstimateImageSize(m_pCachedBitmap) +
                   FPDF_ImageCache_EstimateImageSize(m_pCachedMask);
 }