Fix an uninitalized read in FPDFText_GetFontSize().

fpdfsdk/src/fpdftext.cpp

Index: fpdfsdk/src/fpdftext.cpp
diff --git a/fpdfsdk/src/fpdftext.cpp b/fpdfsdk/src/fpdftext.cpp
index ed34ecdbf7e8e66c6c7ed97be32dd0291905e6b9..4659951c3c8a5eb900dbd80773c31b93b9b8c2c7 100644
--- a/fpdfsdk/src/fpdftext.cpp
+++ b/fpdfsdk/src/fpdftext.cpp
@@ -33,6 +33,7 @@ DLLEXPORT int STDCALL FPDFText_CountChars(FPDF_TEXTPAGE text_page) {
   IPDF_TextPage* textpage = (IPDF_TextPage*)text_page;
   return textpage->CountChars();
 }
+
 DLLEXPORT unsigned int STDCALL FPDFText_GetUnicode(FPDF_TEXTPAGE text_page,
                                                    int index) {
   if (!text_page)
@@ -43,9 +44,10 @@ DLLEXPORT unsigned int STDCALL FPDFText_GetUnicode(FPDF_TEXTPAGE text_page,
     return 0;
 
   FPDF_CHAR_INFO charinfo;
-  textpage->GetCharInfo(index, charinfo);
+  textpage->GetCharInfo(index, &charinfo);
   return charinfo.m_Unicode;
 }
+
 DLLEXPORT double STDCALL FPDFText_GetFontSize(FPDF_TEXTPAGE text_page,
                                               int index) {
   if (!text_page)
@@ -56,7 +58,7 @@ DLLEXPORT double STDCALL FPDFText_GetFontSize(FPDF_TEXTPAGE text_page,
     return 0;
 
   FPDF_CHAR_INFO charinfo;
-  textpage->GetCharInfo(index, charinfo);
+  textpage->GetCharInfo(index, &charinfo);
   return charinfo.m_FontSize;
 }
 
@@ -73,7 +75,7 @@ DLLEXPORT void STDCALL FPDFText_GetCharBox(FPDF_TEXTPAGE text_page,
   if (index < 0 || index >= textpage->CountChars())
     return;
   FPDF_CHAR_INFO charinfo;
-  textpage->GetCharInfo(index, charinfo);
+  textpage->GetCharInfo(index, &charinfo);
   *left = charinfo.m_CharBox.left;
   *right = charinfo.m_CharBox.right;
   *bottom = charinfo.m_CharBox.bottom;