Basic framework for Budget API.

third_party/WebKit/Source/modules/budget_service/NavigatorBudget.h

Index: third_party/WebKit/Source/modules/budget_service/NavigatorBudget.h
diff --git a/third_party/WebKit/Source/modules/budget_service/NavigatorBudget.h b/third_party/WebKit/Source/modules/budget_service/NavigatorBudget.h
new file mode 100644
index 0000000000000000000000000000000000000000..89249899cff32cf438759f1aa7fba67236d5af91
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+++ b/third_party/WebKit/Source/modules/budget_service/NavigatorBudget.h
@@ -0,0 +1,47 @@
+// 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 NavigatorBudget_h
+#define NavigatorBudget_h
+
+#include "bindings/core/v8/ScriptWrappable.h"
+#include "modules/ModulesExport.h"
+#include "platform/Supplementable.h"
+#include "wtf/Noncopyable.h"
+
+namespace blink {
+
+class ExceptionState;
+class Navigator;
+class ScriptPromise;
+class ScriptState;
+
+// This is the entry point into the browser for the BudgetAPI, which is

[Peter Beverloo, 2016/07/01 13:21:59]

nit: BudgetAPI -> Budget API

[harkness, 2016/07/20 09:41:48]

Done.

+// designed to give Service Workers the ability to perform background

[Peter Beverloo, 2016/07/01 13:21:59]

Service Workers -> origins

[harkness, 2016/07/20 09:41:48]

Done.

+// operations on the user's behalf.
+class MODULES_EXPORT NavigatorBudget final

[Peter Beverloo, 2016/07/01 13:21:59]

Why do you need MODULES_EXPORT here?

[harkness, 2016/07/20 09:41:48]

Removed.

+    : public GarbageCollectedFinalized<NavigatorBudget>

[Peter Beverloo, 2016/07/01 13:21:59]

Why do you need a finalizer here? This can just be GarbageCollected<> and you
can remove the destructor.

[harkness, 2016/07/20 09:41:48]

Updated it.

+    , public Supplement<Navigator> {
+    USING_GARBAGE_COLLECTED_MIXIN(NavigatorBudget);
+    WTF_MAKE_NONCOPYABLE(NavigatorBudget);
+
+public:
+    virtual ~NavigatorBudget();
+
+    const char* supplementName();
+    NavigatorBudget& from(Navigator&);
+
+    static ScriptPromise getCost(ScriptState*, Navigator&, const AtomicString& actionType);
+    static ScriptPromise getBudget(ScriptState*, Navigator&, ExceptionState&);
+    static ScriptPromise getBudgetDetails(ScriptState*, Navigator&, ExceptionState&);
+
+    DEFINE_INLINE_TRACE() {}
+
+private:
+    explicit NavigatorBudget(Navigator&);
+};
+
+} // namespace blink
+
+#endif // NavigatorBudget_h