Add compiler-specific "examine printf format" attributes to printfs.

chrome/browser/safe_browsing/protocol_parser.cc

Index: chrome/browser/safe_browsing/protocol_parser.cc
diff --git a/chrome/browser/safe_browsing/protocol_parser.cc b/chrome/browser/safe_browsing/protocol_parser.cc
index ce8474c62ad06834da0256c172263faaab623faf..c2aa7936e5fdad381e809e259e406fa22c760e5c 100644
--- a/chrome/browser/safe_browsing/protocol_parser.cc
+++ b/chrome/browser/safe_browsing/protocol_parser.cc
@@ -4,6 +4,8 @@
 //
 // Parse the data returned from the SafeBrowsing v2.1 protocol response.
 
+#include "chrome/browser/safe_browsing/protocol_parser.h"
+
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
@@ -12,8 +14,7 @@
 #include <arpa/inet.h>
 #endif
 
-#include "chrome/browser/safe_browsing/protocol_parser.h"
-
+#include "base/format_macros.h"
 #include "base/logging.h"
 #include "base/string_util.h"
 
@@ -115,7 +116,7 @@ void SafeBrowsingProtocolParser::FormatGetHash(
   DCHECK(request);
 
   // Format the request for GetHash.
-  request->append(StringPrintf("%d:%d\n",
+  request->append(StringPrintf("%" PRIuS ":%" PRIuS "\n",
                                sizeof(SBPrefix),
                                sizeof(SBPrefix) * prefixes.size()));
   for (size_t i = 0; i < prefixes.size(); ++i) {