[Telemetry SWX] add timezone info browser test

Bug: b:158658869
Change-Id: Ic920541850a6e29f9db04b84e333709cb74d5827
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2387642Reviewed-by: Mahmoud Gawad <mgawad@google.com>
Commit-Queue: Oleh Lamzin <lamzin@google.com>
Cr-Commit-Position: refs/heads/master@{#803629}

chromeos/components/telemetry_extension_ui/test/telemetry_extension_ui_browsertest.cc

@@ -254,6 +254,15 @@ void TelemetryExtensionUiBrowserTest::SetUpOnMainThread() {
         chromeos::cros_healthd::mojom::CpuResult::NewCpuInfo(
             std::move(cpu_info));
   }
+  {
+    auto timezone_info = chromeos::cros_healthd::mojom::TimezoneInfo::New();
+    timezone_info->posix = "MST7MDT,M3.2.0,M11.1.0";
+    timezone_info->region = "America/Denver";
+
+    telemetry_info->timezone_result =
+        chromeos::cros_healthd::mojom::TimezoneResult::NewTimezoneInfo(
+            std::move(timezone_info));
+  }
 
   DCHECK(chromeos::cros_healthd::FakeCrosHealthdClient::Get());
 

chromeos/components/telemetry_extension_ui/test/untrusted_browsertest.js

@@ -219,6 +219,12 @@ UNTRUSTED_TEST('UntrustedRequestTelemetryInfo', async () => {
           {modelName: 'i9-low-powered', logicalCpus: []}
         ]
       }
+    },
+    timezoneResult: {
+      timezoneInfo: {
+        posix: 'MST7MDT,M3.2.0,M11.1.0',
+        region: 'America/Denver',
+      }
     }
   });
 });