update_engine: Use integer types from stdint.h

This CL replaces the deprecated int* and uint* types from
'base/basictypes.h' with the int*_t and uint*_t types from 'stdint.h'.

BUG=chromium:401356
TEST=`FEATURES=test emerge-$BOARD update_engine`

Change-Id: I658b34ad9e6feb938e0b569b72947a052ef8f8af
Reviewed-on: https://chromium-review.googlesource.com/211380
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Ben Chan <benchan@chromium.org>
Commit-Queue: Ben Chan <benchan@chromium.org>
diff --git a/omaha_request_action.cc b/omaha_request_action.cc
index 7ccd0d5..76eeee7 100644
--- a/omaha_request_action.cc
+++ b/omaha_request_action.cc
@@ -984,7 +984,7 @@
 OmahaRequestAction::IsWallClockBasedWaitingSatisfied(
     OmahaResponse* output_object) {
   Time update_first_seen_at;
-  int64 update_first_seen_at_int;
+  int64_t update_first_seen_at_int;
 
   if (system_state_->prefs()->Exists(kPrefsUpdateFirstSeenAt)) {
     if (system_state_->prefs()->GetInt64(kPrefsUpdateFirstSeenAt,
@@ -1084,7 +1084,7 @@
 }
 
 bool OmahaRequestAction::IsUpdateCheckCountBasedWaitingSatisfied() {
-  int64 update_check_count_value;
+  int64_t update_check_count_value;
 
   if (system_state_->prefs()->Exists(kPrefsUpdateCheckCount)) {
     if (!system_state_->prefs()->GetInt64(kPrefsUpdateCheckCount,