Add TimeZone API unit test.

Add unit test for chrome/browser/chromeos/timezone/ .

BUG=245075
TEST=none

Review URL: https://codereview.chromium.org/299503002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@272115 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/chromeos/timezone/timezone_request.h b/chrome/browser/chromeos/timezone/timezone_request.h
index 77deb4f..08174b7 100644
--- a/chrome/browser/chromeos/timezone/timezone_request.h
+++ b/chrome/browser/chromeos/timezone/timezone_request.h
@@ -83,6 +83,16 @@
   // request will be silently cancelled.
   void MakeRequest(TimeZoneResponseCallback callback);
 
+  void set_retry_sleep_on_server_error_for_testing(
+      const base::TimeDelta value) {
+    retry_sleep_on_server_error_ = value;
+  }
+
+  void set_retry_sleep_on_bad_response_for_testing(
+      const base::TimeDelta value) {
+    retry_sleep_on_bad_response_ = value;
+  }
+
  private:
   // net::URLFetcherDelegate
   virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
@@ -112,6 +122,10 @@
   // Pending retry.
   base::OneShotTimer<TimeZoneRequest> timezone_request_scheduled_;
 
+  base::TimeDelta retry_sleep_on_server_error_;
+
+  base::TimeDelta retry_sleep_on_bad_response_;
+
   // Number of retry attempts.
   unsigned retries_;