Perform alarm's period limit check while reading alarm info from StateStore.

extensions/browser/api/alarms/alarms_api.cc

Index: extensions/browser/api/alarms/alarms_api.cc
diff --git a/extensions/browser/api/alarms/alarms_api.cc b/extensions/browser/api/alarms/alarms_api.cc
index c6911330d2d53eee427c1c5b79ce2d320b0a5fca..ea01ea24fa262cf2bf7bf9d04f3140e257825793 100644
--- a/extensions/browser/api/alarms/alarms_api.cc
+++ b/extensions/browser/api/alarms/alarms_api.cc
@@ -12,6 +12,7 @@
 #include "base/time/default_clock.h"
 #include "base/values.h"
 #include "extensions/browser/api/alarms/alarm_manager.h"
+#include "extensions/browser/api/alarms/alarms_api_constants.h"
 #include "extensions/common/api/alarms.h"
 #include "extensions/common/error_utils.h"
 
@@ -27,7 +28,6 @@ const char kBothRelativeAndAbsoluteTime[] =
 const char kNoScheduledTime[] =
     "Must set at least one of when, delayInMinutes, or periodInMinutes.";
 const int kReleaseDelayMinimum = 1;
-const int kDevDelayMinimum = 0;
 
 bool ValidateAlarmCreateInfo(const std::string& alarm_name,
                              const alarms::AlarmCreateInfo& create_info,
@@ -118,12 +118,15 @@ bool AlarmsCreateFunction::RunAsync() {
        it != warnings.end(); ++it)
     WriteToConsole(content::CONSOLE_MESSAGE_LEVEL_WARNING, *it);
 
-  Alarm alarm(alarm_name, params->alarm_info,
-              base::TimeDelta::FromMinutes(
-                  Manifest::IsUnpackedLocation(extension()->location())
-                      ? kDevDelayMinimum
-                      : kReleaseDelayMinimum),
-              clock_->Now());
+  const int kSecondsPerMinute = 60;
+  base::TimeDelta granularity =
+      base::TimeDelta::FromSecondsD(
+          (Manifest::IsUnpackedLocation(extension()->location())
+               ? alarms_api_constants::kDevDelayMinimum
+               : kReleaseDelayMinimum)) *
+      kSecondsPerMinute;
+
+  Alarm alarm(alarm_name, params->alarm_info, granularity, clock_->Now());
   AlarmManager::Get(browser_context())
       ->AddAlarm(extension_id(), alarm,
                  base::Bind(&AlarmsCreateFunction::Callback, this));