The Tor Browser: dom/quota/Utilities.h@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* vim: set ts=2 et sw=2 tw=80: */

     3 /* This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this file,

     5  * You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 #ifndef mozilla_dom_quota_utilities_h__

     8 #define mozilla_dom_quota_utilities_h__

    10 #include "mozilla/dom/quota/QuotaCommon.h"

    12 BEGIN_QUOTA_NAMESPACE

    14 inline void

    15 IncrementUsage(uint64_t* aUsage, uint64_t aDelta)

    16 {

    17   // Watch for overflow!

    18   if ((UINT64_MAX - *aUsage) < aDelta) {

    19     NS_WARNING("Usage exceeds the maximum!");

    20     *aUsage = UINT64_MAX;

    21   }

    22   else {

    23     *aUsage += aDelta;

    24   }

    25 }

    27 inline bool

    28 PatternMatchesOrigin(const nsACString& aPatternString, const nsACString& aOrigin)

    29 {

    30   // Aren't we smart!

    31   return StringBeginsWith(aOrigin, aPatternString);

    32 }

    34 END_QUOTA_NAMESPACE

    36 #endif // mozilla_dom_quota_utilities_h__

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