Switch to standard integer types in components/, part 2 of 4.

components/metrics/net/wifi_access_point_info_provider_chromeos.cc

Index: components/metrics/net/wifi_access_point_info_provider_chromeos.cc
diff --git a/components/metrics/net/wifi_access_point_info_provider_chromeos.cc b/components/metrics/net/wifi_access_point_info_provider_chromeos.cc
index 16471bc12ee39c2239c42c257bb3478352d1a48b..3654e93ef4fc7ad135238b3d51027beedb01b066 100644
--- a/components/metrics/net/wifi_access_point_info_provider_chromeos.cc
+++ b/components/metrics/net/wifi_access_point_info_provider_chromeos.cc
@@ -4,6 +4,8 @@
 
 #include "components/metrics/net/wifi_access_point_info_provider_chromeos.h"
 
+#include <stdint.h>
+
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/strings/string_number_conversions.h"
@@ -72,7 +74,7 @@ void WifiAccessPointInfoProviderChromeos::ParseInfo(
     return;
 
   // Filter out BSSID with local bit set in the first byte.
-  uint32 first_octet;
+  uint32_t first_octet;
   if (!base::HexStringToUInt(bssid.substr(0, 2), &first_octet))
     NOTREACHED();
   if (first_octet & 0x2)