Revert of Pdfium: Fix fonts leaking on ClosePage.

core/fpdfapi/fpdf_render/fpdf_render.cpp

Index: core/fpdfapi/fpdf_render/fpdf_render.cpp
diff --git a/core/fpdfapi/fpdf_render/fpdf_render.cpp b/core/fpdfapi/fpdf_render/fpdf_render.cpp
index 0bdb0a094c92e96a44ce1c6d09ba0299a94e584b..fbb0745506a67206334b967e20fd21494c4b95ef 100644
--- a/core/fpdfapi/fpdf_render/fpdf_render.cpp
+++ b/core/fpdfapi/fpdf_render/fpdf_render.cpp
@@ -30,13 +30,14 @@
 #include "core/fpdfapi/fpdf_render/include/cpdf_textrenderer.h"
 #include "core/fpdfapi/include/cpdf_modulemgr.h"
 #include "core/fpdfdoc/include/cpdf_occontext.h"
+#include "core/fxge/include/cfx_fontcache.h"
 #include "core/fxge/include/cfx_fxgedevice.h"
 #include "core/fxge/include/cfx_graphstatedata.h"
 #include "core/fxge/include/cfx_pathdata.h"
 #include "core/fxge/include/cfx_renderdevice.h"
 
 CPDF_DocRenderData::CPDF_DocRenderData(CPDF_Document* pPDFDoc)
-    : m_pPDFDoc(pPDFDoc) {}
+    : m_pPDFDoc(pPDFDoc), m_pFontCache(new CFX_FontCache) {}
 
 CPDF_DocRenderData::~CPDF_DocRenderData() {
   Clear(TRUE);
@@ -60,6 +61,15 @@
       delete value->get();
       delete value;
       m_TransferFuncMap.erase(curr_it);
+    }
+  }
+
+  if (m_pFontCache) {
+    if (bRelease) {
+      delete m_pFontCache;
+      m_pFontCache = nullptr;
+    } else {
+      m_pFontCache->FreeCache(FALSE);
     }
   }
 }