Index: components/offline_pages/background/offliner_policy.h |
diff --git a/components/offline_pages/background/offliner_policy.h b/components/offline_pages/background/offliner_policy.h |
deleted file mode 100644 |
index 7ffd45496a4704ca45ed28ea028837245029e612..0000000000000000000000000000000000000000 |
--- a/components/offline_pages/background/offliner_policy.h |
+++ /dev/null |
@@ -1,151 +0,0 @@ |
-// 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 COMPONENTS_OFFLINE_PAGES_BACKGROUND_OFFLINER_POLICY_H_ |
-#define COMPONENTS_OFFLINE_PAGES_BACKGROUND_OFFLINER_POLICY_H_ |
- |
-namespace { |
-// The max number of started tries is to guard against pages that make the |
-// prerenderer crash. It should be greater than or equal to the max number of |
-// completed tries. |
-const int kMaxStartedTries = 5; |
-// The number of max completed tries is based on Gin2G-poor testing showing that |
-// we often need about 4 tries with a 2 minute window, or 3 retries with a 3 |
-// minute window. Also, we count one try now for foreground/disabled requests. |
-const int kMaxCompletedTries = 3; |
-// By the time we get to a week, the user has forgotten asking for a page. |
-const int kRequestExpirationTimeInSeconds = 60 * 60 * 24 * 7; |
- |
-// Scheduled background processing time limits. |
-const int kDozeModeBackgroundServiceWindowSeconds = 60 * 3; |
-const int kDefaultBackgroundProcessingTimeBudgetSeconds = |
- kDozeModeBackgroundServiceWindowSeconds - 10; |
-const int kSinglePageTimeLimitWhenBackgroundScheduledSeconds = |
- kDozeModeBackgroundServiceWindowSeconds - 10; |
- |
-// Immediate processing time limits. |
-// Note: experiments on GIN-2g-poor show many page requests took 3 or 4 |
-// attempts in background scheduled mode with timeout of 2 minutes. So for |
-// immediate processing mode, give page requests 4 times that limit (8 min). |
-// Then budget up to 5 of those requests in processing window. |
-const int kSinglePageTimeLimitForImmediateLoadSeconds = 60 * 8; |
-const int kImmediateLoadProcessingTimeBudgetSeconds = |
- kSinglePageTimeLimitForImmediateLoadSeconds * 5; |
-} // namespace |
- |
-namespace offline_pages { |
- |
-// Policy for the Background Offlining system. Some policy will belong to the |
-// RequestCoordinator, some to the RequestQueue, and some to the Offliner. |
-class OfflinerPolicy { |
- public: |
- OfflinerPolicy() |
- : prefer_untried_requests_(true), |
- prefer_earlier_requests_(true), |
- retry_count_is_more_important_than_recency_(true), |
- max_started_tries_(kMaxStartedTries), |
- max_completed_tries_(kMaxCompletedTries), |
- background_scheduled_processing_time_budget_( |
- kDefaultBackgroundProcessingTimeBudgetSeconds) {} |
- |
- // Constructor for unit tests. |
- OfflinerPolicy(bool prefer_untried, |
- bool prefer_earlier, |
- bool prefer_retry_count, |
- int max_started_tries, |
- int max_completed_tries, |
- int background_processing_time_budget) |
- : prefer_untried_requests_(prefer_untried), |
- prefer_earlier_requests_(prefer_earlier), |
- retry_count_is_more_important_than_recency_(prefer_retry_count), |
- max_started_tries_(max_started_tries), |
- max_completed_tries_(max_completed_tries), |
- background_scheduled_processing_time_budget_( |
- background_processing_time_budget) {} |
- |
- // TODO(petewil): Numbers here are chosen arbitrarily, do the proper studies |
- // to get good policy numbers. Eventually this should get data from a finch |
- // experiment. |
- |
- // Returns true if we should prefer retrying lesser tried requests. |
- bool ShouldPreferUntriedRequests() const { return prefer_untried_requests_; } |
- |
- // Returns true if we should prefer older requests of equal number of tries. |
- bool ShouldPreferEarlierRequests() const { return prefer_earlier_requests_; } |
- |
- // Returns true if retry count is considered more important than recency in |
- // picking which request to try next. |
- bool RetryCountIsMoreImportantThanRecency() const { |
- return retry_count_is_more_important_than_recency_; |
- } |
- |
- // The max number of times we will start a request. Not all started attempts |
- // will complete. This may be caused by prerenderer issues or chromium being |
- // swapped out of memory. |
- int GetMaxStartedTries() const { return max_started_tries_; } |
- |
- // The max number of times we will retry a request when the attempt |
- // completed, but failed. |
- int GetMaxCompletedTries() const { return max_completed_tries_; } |
- |
- bool PowerRequired(bool user_requested) const { |
- return (!user_requested); |
- } |
- |
- bool UnmeteredNetworkRequired(bool user_requested) const { |
- return !(user_requested); |
- } |
- |
- int BatteryPercentageRequired(bool user_requested) const { |
- if (user_requested) |
- return 0; |
- // This is so low because we require the device to be plugged in and |
- // charging. If we decide to allow non-user requested pages when not |
- // plugged in, we should raise this somewhat higher. |
- return 25; |
- } |
- |
- // How many seconds to keep trying new pages for, before we give up, and |
- // return to the scheduler. |
- // TODO(dougarnett): Consider parameterizing these time limit/budget |
- // calls with processing mode. |
- int GetProcessingTimeBudgetWhenBackgroundScheduledInSeconds() const { |
- return background_scheduled_processing_time_budget_; |
- } |
- |
- // How many seconds to keep trying new pages for, before we give up, when |
- // processing started immediately (without scheduler). |
- int GetProcessingTimeBudgetForImmediateLoadInSeconds() const { |
- return kImmediateLoadProcessingTimeBudgetSeconds; |
- } |
- |
- // How long do we allow a page to load before giving up on it when |
- // background loading was scheduled. |
- int GetSinglePageTimeLimitWhenBackgroundScheduledInSeconds() const { |
- return kSinglePageTimeLimitWhenBackgroundScheduledSeconds; |
- } |
- |
- // How long do we allow a page to load before giving up on it when |
- // immediately background loading. |
- int GetSinglePageTimeLimitForImmediateLoadInSeconds() const { |
- return kSinglePageTimeLimitForImmediateLoadSeconds; |
- } |
- |
- // How long we allow requests to remain in the system before giving up. |
- int GetRequestExpirationTimeInSeconds() const { |
- return kRequestExpirationTimeInSeconds; |
- } |
- |
- private: |
- bool prefer_untried_requests_; |
- bool prefer_earlier_requests_; |
- bool retry_count_is_more_important_than_recency_; |
- int max_started_tries_; |
- int max_completed_tries_; |
- int background_scheduled_processing_time_budget_; |
-}; |
-} // namespace offline_pages |
- |
- |
-#endif // COMPONENTS_OFFLINE_PAGES_BACKGROUND_OFFLINER_POLICY_H_ |