Address lint issues in pdf directories.
Review URL: http://codereview.appspot.com/4887042

git-svn-id: http://skia.googlecode.com/svn/trunk@2117 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/include/pdf/SkBitSet.h b/include/pdf/SkBitSet.h
index 4791df4..fd564a5 100755
--- a/include/pdf/SkBitSet.h
+++ b/include/pdf/SkBitSet.h
@@ -55,7 +55,7 @@
         SkASSERT((size_t)index < fBitCount);
         size_t internalIndex = index / 32;
         SkASSERT(internalIndex < fDwordCount);
-        return (uint32_t*)fBitData.get() + internalIndex;
+        return reinterpret_cast<uint32_t*>(fBitData.get()) + internalIndex;
     }
 };