Added budget_service.mojom

third_party/WebKit/public/platform/modules/budget_service/budget_service.mojom

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module blink.mojom;
+
+import "url/mojo/origin.mojom";
+
+enum OperationType {

[johnme, 2016/08/17 13:54:02]

Nit: Might need to be namespaced? e.g. BudgetOperationType?

[harkness, 2016/08/18 10:23:26]

Good idea.

+  SILENT_PUSH
+};
+
+// Structure representing the budget at points in time in the future.
+struct BudgetState {
+  // Amount of budget that will be available.

[johnme, 2016/08/17 13:54:02]

Please be more specific, e.g. "A lower bound for the minimum amount of budget
available between this time and the previous time."

[harkness, 2016/08/18 10:23:26]

Done.

+  double budget_at;
+
+  // Time at which the budget is available, in milliseconds since 00:00:00 UTC
+  // on 1 January 1970, at which the budget_at will be valid.
+  double time;
+};
+
+// Service through which Blink can query for the cost of particular actions and
+// for the budget available for an origin.
+interface BudgetService {
+  GetCost(OperationType operation) => (double cost);
+  GetBudget(url.mojom.Origin origin) => (array<BudgetState> budget);
+};
+