Clean up error handling and timestamp initialization for cloud policy.

chrome/browser/policy/device_token_fetcher.cc

Index: chrome/browser/policy/device_token_fetcher.cc
diff --git a/chrome/browser/policy/device_token_fetcher.cc b/chrome/browser/policy/device_token_fetcher.cc
index e96b4fb424be0da391b2a7d808ba1bb8cd42401d..540c4df0c4990b6f10ab310ede62771db2d624b4 100644
--- a/chrome/browser/policy/device_token_fetcher.cc
+++ b/chrome/browser/policy/device_token_fetcher.cc
@@ -119,24 +119,31 @@ void DeviceTokenFetcher::OnError(DeviceManagementBackend::ErrorCode code) {
   switch (code) {
     case DeviceManagementBackend::kErrorServiceManagementNotSupported:
       SetUnmanagedState();
-      break;
+      return;
     case DeviceManagementBackend::kErrorRequestFailed:
     case DeviceManagementBackend::kErrorTemporaryUnavailable:
     case DeviceManagementBackend::kErrorServiceDeviceNotFound:
     case DeviceManagementBackend::kErrorServiceDeviceIdConflict:
       SetState(STATE_TEMPORARY_ERROR);
-      break;
+      return;
     case DeviceManagementBackend::kErrorServiceManagementTokenInvalid:
       // Most probably the GAIA auth cookie has expired. We can not do anything
       // until the user logs-in again.
       SetState(STATE_BAD_AUTH);
-      break;
+      return;
     case DeviceManagementBackend::kErrorServiceInvalidSerialNumber:
       SetSerialNumberInvalidState();
-      break;
-    default:
+      return;
+    case DeviceManagementBackend::kErrorRequestInvalid:
+    case DeviceManagementBackend::kErrorHttpStatus:
+    case DeviceManagementBackend::kErrorResponseDecoding:
+    case DeviceManagementBackend::kErrorServiceActivationPending:
+    case DeviceManagementBackend::kErrorServicePolicyNotFound:
       SetState(STATE_ERROR);
+      return;
   }
+  NOTREACHED();
+  SetState(STATE_ERROR);
 }
 
 void DeviceTokenFetcher::Initialize(DeviceManagementService* service,