Switch to standard integer types in components/, part 3 of 4.

components/rappor/bloom_filter.cc

Index: components/rappor/bloom_filter.cc
diff --git a/components/rappor/bloom_filter.cc b/components/rappor/bloom_filter.cc
index 6c6f65409151fa37f089a9bf86c4ea756c418756..bf4c874e5acc4795f9a0e7cefb9a7f7fc8c7289b 100644
--- a/components/rappor/bloom_filter.cc
+++ b/components/rappor/bloom_filter.cc
@@ -4,6 +4,8 @@
 
 #include "components/rappor/bloom_filter.h"
 
+#include <stddef.h>
+
 #include "base/logging.h"
 #include "third_party/smhasher/src/City.h"
 
@@ -56,7 +58,7 @@ uint64_t GetBloomBits(uint32_t bytes_size,
                       uint32_t hash_function_count,
                       uint32_t hash_seed_offset,
                       const std::string& str) {
-  // Make sure result fits in uint64.
+  // Make sure result fits in uint64_t.
   DCHECK_LE(bytes_size, 8u);
   uint64_t output = 0;
   const uint32_t bits_size = bytes_size * 8;