Basic framework for Budget API.

third_party/WebKit/Source/modules/budget/Budget.h

+// 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.
+
+#ifndef Budget_h
+#define Budget_h
+
+#include "bindings/core/v8/ScriptWrappable.h"
+#include "modules/ModulesExport.h"
+
+namespace blink {
+
+class ExceptionState;
+class Navigator;
+class ScriptPromise;
+class ScriptState;
+
+// This is the entry point into the browser for the Budget API, which is
+// designed to give origins the ability to perform background operations
+// on the user's behalf.
+class Budget final :
+    public GarbageCollected<Budget>,
+    public ScriptWrappable {

[Peter Beverloo, 2016/08/03 13:25:54]

nit: I wouldn't wrap these three lines. Even in Chromium style they'd fit on a
single line.

[harkness, 2016/08/04 14:18:23]

Done.

+    DEFINE_WRAPPERTYPEINFO();
+
+public:
+    static Budget* create(Navigator* navigator)
+    {
+        return new Budget(navigator);

[Peter Beverloo, 2016/08/03 13:25:54]

nit: drop the |navigator| argument, we're not using it.

[harkness, 2016/08/04 14:18:23]

Done.

+    }
+
+    static ScriptPromise getCost(ScriptState*, const AtomicString& actionType);
+    static ScriptPromise getBudget(ScriptState*, ExceptionState&);

[Peter Beverloo, 2016/08/03 13:25:54]

nit: These methods shouldn't be static. NavigatorBudget returns an instance, so
we can just operate on that.

[harkness, 2016/08/04 14:18:23]

Done.

+
+    DECLARE_TRACE();
+
+private:
+    explicit Budget(Navigator*);
+
+    Member<Navigator> m_navigator;
+};
+
+} // namespace blink
+
+#endif // Budget_h