Added budget_service.mojom

third_party/WebKit/LayoutTests/http/tests/budget/budget-service-mock.js

Index: third_party/WebKit/LayoutTests/http/tests/budget/budget-service-mock.js
diff --git a/third_party/WebKit/LayoutTests/http/tests/budget/budget-service-mock.js b/third_party/WebKit/LayoutTests/http/tests/budget/budget-service-mock.js
new file mode 100644
index 0000000000000000000000000000000000000000..cb51bcffd224e89a941ef843d73e720ee94f5ac0
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/http/tests/budget/budget-service-mock.js
@@ -0,0 +1,43 @@
+/**
+ * Mock implementation of the budget service.
+ */
+
+"use strict";
+
+const TEST_BUDGET_COST = 1.2;
+const TEST_BUDGET_VALUE = 2.3;
+const TEST_BUDGET_EXPIRATION = 3.4;
+
+let budgetServiceMock = loadMojoModules(
+    'budgetServiceMock',
+    ['third_party/WebKit/public/platform/modules/budget_service/budget_service.mojom',
+     'mojo/public/js/router']
+    ).then(mojo => {
+  let [budget_service, router] = mojo.modules;
+
+  class BudgetServiceMock {
+    constructor(interfaceProvider) {
+      interfaceProvider.addInterfaceOverrideForTesting(
+          budget_service.BudgetService.name,
+          handle => this.connectBudgetService_(handle));
+
+      this.interfaceProvider_ = interfaceProvider;
+    }
+
+    connectBudgetService_(handle) {
+      this.budgetServiceStub_ = new budget_service.BudgetService.stubClass(this);
+      this.budgetServiceRouter_ = new router.Router(handle);
+      this.budgetServiceRouter_.setIncomingReceiver(this.budgetServiceStub_);
+    }
+
+    getCost(operationType) {
+      return Promise.resolve({ cost:TEST_BUDGET_COST });
+    }
+
+    getBudget() {
+      return Promise.resolve({ budget: [ { time:TEST_BUDGET_EXPIRATION, budget_at:TEST_BUDGET_VALUE } ] });
+    }
+  }
+  // Connect to the Mojo interface.
+  return new BudgetServiceMock(mojo.interfaces);
+});