Switch to standard integer types in base/.

base/pickle.cc

Index: base/pickle.cc
diff --git a/base/pickle.cc b/base/pickle.cc
index 678c425e9439b76c24acfab1638b286ada81ed73..d83391bb524194b212a1f86ea0da26c1befd84ea 100644
--- a/base/pickle.cc
+++ b/base/pickle.cc
@@ -11,6 +11,7 @@
 
 #include "base/bits.h"
 #include "base/macros.h"
+#include "build/build_config.h"
 
 namespace base {
 
@@ -71,7 +72,7 @@ const char* PickleIterator::GetReadPointerAndAdvance(int num_bytes) {
 inline const char* PickleIterator::GetReadPointerAndAdvance(
     int num_elements,
     size_t size_element) {
-  // Check for int32 overflow.
+  // Check for int32_t overflow.
   int64_t num_bytes = static_cast<int64_t>(num_elements) * size_element;
   int num_bytes32 = static_cast<int>(num_bytes);
   if (num_bytes != static_cast<int64_t>(num_bytes32))