switch to 64-bit checksum: now BitmapChecksum is a sal_uInt64

Changed hardcoded checksum value in ooxmlimport unit test (testN777345).

Change-Id: Ied43bf626be82c0e7f6c62e965d0704fc645ac19

include/vcl/checksum.hxx

@@ -125,11 +125,10 @@ static const sal_uInt64 vcl_crc64Table[256] = {
   0x29b7d047efec8728ULL
 };
 
-#define BITMAP_CHECKSUM_SIZE 4
+#define BITMAP_CHECKSUM_SIZE 8
 #define BITMAP_CHECKSUM_BITS BOOST_PP_MUL(BITMAP_CHECKSUM_SIZE, 8)
 
-typedef sal_uLong   BitmapChecksum;
-
+typedef sal_uInt64   BitmapChecksum;
 typedef sal_uInt8   BitmapChecksumOctetArray[BITMAP_CHECKSUM_SIZE];
 
 #define BITMAP_CHECKSUM_SET_OCTET(z, i, unused) \

sw/qa/extras/ooxmlimport/ooxmlimport.cxx

@@ -750,7 +750,7 @@ DECLARE_OOXMLIMPORT_TEST(testN777345, "n777345.docx")
     Graphic aGraphic(xGraphic);
     // If this changes later, feel free to update it, but make sure it's not
     // the checksum of a white/transparent placeholder rectangle.
-    CPPUNIT_ASSERT_EQUAL(sal_uLong(1256330431U), aGraphic.GetChecksum());
+    CPPUNIT_ASSERT_EQUAL(BitmapChecksum(3652741777587093783), aGraphic.GetChecksum());
 #endif
 }