Change how the quota system computes the total poolsize for temporary storage

storage/browser/quota/quota_temporary_storage_evictor.cc

 // Copyright 2013 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_temporary_storage_evictor.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 
@@ skipping 172 matching lines @@
       kDefaultMustRemainAvailableSpace;
 
   quota_eviction_handler_->GetUsageAndQuotaForEviction(
       base::Bind(&QuotaTemporaryStorageEvictor::OnGotUsageAndQuotaForEviction,
                  weak_factory_.GetWeakPtr(), must_remain_available_space));
 }
 
 void QuotaTemporaryStorageEvictor::OnGotUsageAndQuotaForEviction(
     int64_t must_remain_available_space,
     QuotaStatusCode status,
-    const UsageAndQuota& qau) {
+    const XUsageAndQuota& qau) {
   DCHECK(CalledOnValidThread());
 
   int64_t usage = qau.global_limited_usage;
   DCHECK_GE(usage, 0);
 
   if (status != kQuotaStatusOk)
     ++statistics_.num_errors_on_getting_usage_and_quota;
 
   int64_t usage_overage = std::max(
       static_cast<int64_t>(0),
@@ skipping 82 matching lines @@
     ++statistics_.num_errors_on_evicting_origin;
     if (repeated_eviction_) {
       // Sleep for a while and retry again until we see too many errors.
       StartEvictionTimerWithDelay(interval_ms_);
     }
     OnEvictionRoundFinished();
   }
 }
 
 }  // namespace storage