| // 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. |
| |
| #include "storage/browser/quota/quota_features.h" |
| |
| namespace storage { |
| |
| namespace features { |
| |
| #if defined(OS_CHROMEOS) |
| // Chrome OS is given a larger fraction, as web content is the considered |
| // the primary use of the platform. Chrome OS itself maintains free space by |
| // starting to evict data (old profiles) when less than 1GB remains, |
| // stopping eviction once 2GB is free. |
| // Prior to M66 this was 1/3, same as other platforms. |
| const constexpr double kTemporaryPoolSizeRatioThirds = 2.0 / 3.0; // 66% |
| #else |
| const constexpr double kTemporaryPoolSizeRatioThirds = 1.0 / 3.0; // 33% |
| #endif |
| |
| const base::Feature kQuotaExpandPoolSize{"QuotaExpandPoolSize", |
| base::FEATURE_DISABLED_BY_DEFAULT}; |
| |
| constexpr base::FeatureParam<double> kExperimentalPoolSizeRatio{ |
| &kQuotaExpandPoolSize, "PoolSizeRatio", kTemporaryPoolSizeRatioThirds}; |
| |
| constexpr base::FeatureParam<double> kPerHostRatio{&kQuotaExpandPoolSize, |
| "PerHostRatio", 0.2}; |
| |
| // StaticHostQuota enables a simpler per-host quota model, where the quota is |
| // only based on disk capacity (partition size). When the flag is disabled, the |
| // quota computation takes into account free disk space, in addition to the |
| // disk's total capacity. |
| const base::Feature kStaticHostQuota{"StaticHostQuota", |
| base::FEATURE_DISABLED_BY_DEFAULT}; |
| |
| // QuotaUnlimitedPoolSize removes limitations around disk space consumption with |
| // respect to client-side storage web platform APIs. When enabled, quota will |
| // set no limit on how much space a single origin can consume, as well as |
| // removing limits on how much disk space the temporary pool can consume. |
| const base::Feature kQuotaUnlimitedPoolSize{"QuotaUnlimitedPoolSize", |
| base::FEATURE_DISABLED_BY_DEFAULT}; |
| } // namespace features |
| } // namespace storage |