Clean up some warnings.

src/publishing/pdf/PdfXRefTable.h

@@ -6,14 +6,14 @@
 
 struct XRefRecord
 {
-    unsigned mOffsetBytes{0};
-    unsigned mGenerationNumber{0};
+    std::size_t mOffsetBytes{0};
+    std::size_t mGenerationNumber{0};
     bool mIsFree{false};
 };
 
 struct TableSubSection
 {
-    unsigned mStartIndex{0};
+    std::size_t mStartIndex{0};
     std::vector<XRefRecord> mRecords;
 };
 
@@ -22,14 +22,14 @@ class PdfXRefTable
 public:
     PdfXRefTable();
 
-    void addRecord(unsigned numBytes, unsigned generation, unsigned isFree);
+    void addRecord(std::size_t numBytes, std::size_t generation, unsigned isFree);
 
-    unsigned getNextOffset();
+    std::size_t getNextOffset();
 
-    unsigned getNumEntries();
+    std::size_t getNumEntries();
 
     std::string toString();
 private:
-    unsigned mLastAddedBytes{0};
+    std::size_t mLastAddedBytes{0};
     std::vector<TableSubSection> mSections;
 };