Rewrite LogDog log viewer app.

web/inc/logdog-stream/logdog-error.html

Index: web/inc/logdog-stream/logdog-error.html
diff --git a/web/inc/logdog-stream/logdog-error.html b/web/inc/logdog-stream/logdog-error.html
index 111ed0f920301de75350d5bdd69635f2d62274e5..af62c881639e19ae7029cf0a7fbd047025793fc9 100644
--- a/web/inc/logdog-stream/logdog-error.html
+++ b/web/inc/logdog-stream/logdog-error.html
@@ -24,9 +24,24 @@
     return (this.base.name === "GrpcError");
   };
   LogDogError.prototype.isNotFound = function() {
-    return (this.isGrpcError() && this.base.code === 5);
+    return (this.isGrpcError() && this.base.code === luci.rpc.Code.NOT_FOUND);
   };
   LogDogError.prototype.isUnauthenticated = function() {
-    return (this.isGrpcError() && this.base.code === 16);
+    return (this.isGrpcError() &&
+        this.base.code === luci.rpc.Code.UNAUTHENTICATED);
+  };
+  LogDogError.prototype.isTransient = function() {
+    if ( ! this.isGrpcError() ) {
+      return false;
+    }
+    switch ( this.base.code ) {
+    case luci.rpc.Code.INTERNAL:
+    case luci.rpc.Code.UNAVAILABLE:
+    case luci.rpc.Code.RESOURCE_EXHAUSTED:
+      return true;
+
+    default:
+      return false;
+    }
   };
 </script>