Add a SiteEngagementEvictionPolicy.

storage/browser/quota/quota_manager.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_manager.h"
 
 #include <algorithm>
 #include <functional>
 
 #include "base/bind.h"
@@ skipping 1422 matching lines @@
                   &unlimited_origins);
 
   UMA_HISTOGRAM_COUNTS("Quota.NumberOfPersistentStorageOrigins",
                        num_origins);
   UMA_HISTOGRAM_COUNTS("Quota.NumberOfProtectedPersistentStorageOrigins",
                        protected_origins);
   UMA_HISTOGRAM_COUNTS("Quota.NumberOfUnlimitedPersistentStorageOrigins",
                        unlimited_origins);
 }
 
-void QuotaManager::GetLRUOrigin(
-    StorageType type,
-    const GetLRUOriginCallback& callback) {
+void QuotaManager::GetEvictionOrigin(StorageType type,
+                                     const GetOriginCallback& callback) {
+  GetLRUOrigin(type, callback);
+}
+
+void QuotaManager::EvictOriginData(const GURL& origin,
+                                   StorageType type,
+                                   const EvictOriginDataCallback& callback) {
+  DCHECK(io_thread_->BelongsToCurrentThread());
+  DCHECK_EQ(type, kStorageTypeTemporary);
+
+  eviction_context_.evicted_origin = origin;
+  eviction_context_.evicted_type = type;
+  eviction_context_.evict_origin_data_callback = callback;
+
+  DeleteOriginData(origin, type, QuotaClient::kAllClientsMask,
+                   base::Bind(&QuotaManager::DidOriginDataEvicted,
+                              weak_factory_.GetWeakPtr()));
+}
+
+void QuotaManager::GetUsageAndQuotaForEviction(
+    const UsageAndQuotaCallback& callback) {
+  DCHECK(io_thread_->BelongsToCurrentThread());
+  LazyInitialize();
+
+  UsageAndQuotaCallbackDispatcher* dispatcher =
+      new UsageAndQuotaCallbackDispatcher(this);
+  GetUsageTracker(kStorageTypeTemporary)
+      ->GetGlobalLimitedUsage(dispatcher->GetGlobalLimitedUsageCallback());
+  GetTemporaryGlobalQuota(dispatcher->GetQuotaCallback());
+  GetAvailableSpace(dispatcher->GetAvailableSpaceCallback());
+  dispatcher->WaitForResults(callback);
+}
+
+void QuotaManager::GetLRUOrigin(StorageType type,
+                                const GetOriginCallback& callback) {
   LazyInitialize();
   // This must not be called while there's an in-flight task.
   DCHECK(lru_origin_callback_.is_null());
   lru_origin_callback_ = callback;
   if (db_disabled_) {
     lru_origin_callback_.Run(GURL());
     lru_origin_callback_.Reset();
     return;
   }
 
@@ skipping 17 matching lines @@
       base::Bind(&GetLRUOriginOnDBThread,
                  type,
                  base::Owned(exceptions),
                  special_storage_policy_,
                  base::Unretained(url)),
       base::Bind(&QuotaManager::DidGetLRUOrigin,
                  weak_factory_.GetWeakPtr(),
                  base::Owned(url)));
 }
 
-void QuotaManager::EvictOriginData(
-    const GURL& origin,
-    StorageType type,
-    const EvictOriginDataCallback& callback) {
-  DCHECK(io_thread_->BelongsToCurrentThread());
-  DCHECK_EQ(type, kStorageTypeTemporary);
-
-  eviction_context_.evicted_origin = origin;
-  eviction_context_.evicted_type = type;
-  eviction_context_.evict_origin_data_callback = callback;
-
-  DeleteOriginData(origin, type, QuotaClient::kAllClientsMask,
-      base::Bind(&QuotaManager::DidOriginDataEvicted,
-                 weak_factory_.GetWeakPtr()));
-}
-
-void QuotaManager::GetUsageAndQuotaForEviction(
-    const UsageAndQuotaCallback& callback) {
-  DCHECK(io_thread_->BelongsToCurrentThread());
-  LazyInitialize();
-
-  UsageAndQuotaCallbackDispatcher* dispatcher =
-      new UsageAndQuotaCallbackDispatcher(this);
-  GetUsageTracker(kStorageTypeTemporary)->
-      GetGlobalLimitedUsage(dispatcher->GetGlobalLimitedUsageCallback());
-  GetTemporaryGlobalQuota(dispatcher->GetQuotaCallback());
-  GetAvailableSpace(dispatcher->GetAvailableSpaceCallback());
-  dispatcher->WaitForResults(callback);
-}
-
 void QuotaManager::DidSetTemporaryGlobalOverrideQuota(
     const QuotaCallback& callback,
     const int64* new_quota,
     bool success) {
   QuotaStatusCode status = kQuotaErrorInvalidAccess;
   DidDatabaseWork(success);
   if (success) {
     temporary_quota_override_ = *new_quota;
     status = kQuotaStatusOk;
   }
@@ skipping 99 matching lines @@
   // |database_|, therefore we can be sure that database_ is alive when this
   // task runs.
   base::PostTaskAndReplyWithResult(
       db_thread_.get(),
       from_here,
       base::Bind(task, base::Unretained(database_.get())),
       reply);
 }
 
 }  // namespace storage