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

chrome/browser/extensions/api/sync_file_system/sync_file_system_browsertest.cc

 // Copyright 2014 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 <stdint.h>
 #include <utility>
 
 #include "base/json/json_reader.h"
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/values.h"
 #include "chrome/browser/apps/app_browsertest_util.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/signin/fake_signin_manager_builder.h"
 #include "chrome/browser/sync_file_system/drive_backend/sync_engine.h"
 #include "chrome/browser/sync_file_system/local/local_file_sync_service.h"
 #include "chrome/browser/sync_file_system/sync_file_system_service.h"
 #include "chrome/browser/sync_file_system/sync_file_system_service_factory.h"
 #include "components/drive/service/fake_drive_service.h"
-#include "content/public/browser/storage_partition.h"
 #include "extensions/test/extension_test_message_listener.h"
 #include "extensions/test/result_catcher.h"
 #include "storage/browser/quota/quota_manager.h"
 #include "third_party/leveldatabase/src/helpers/memenv/memenv.h"
 #include "third_party/leveldatabase/src/include/leveldb/env.h"
 
 namespace sync_file_system {
 
 namespace {
 
@@ skipping 23 matching lines @@
 
 }  // namespace
 
 class SyncFileSystemTest : public extensions::PlatformAppBrowserTest,
                            public drive::FakeDriveService::ChangeObserver {
  public:
   SyncFileSystemTest()
       : remote_service_(NULL) {
   }
 
+  void SetUpInProcessBrowserTestFixture() override {
+    ExtensionApiTest::SetUpInProcessBrowserTestFixture();
+    real_minimum_preserved_space_ =
+        storage::QuotaManager::kMinimumPreserveForSystem;
+    storage::QuotaManager::kMinimumPreserveForSystem = 0;
+  }
+
+  void TearDownInProcessBrowserTestFixture() override {
+    storage::QuotaManager::kMinimumPreserveForSystem =
+        real_minimum_preserved_space_;
+    ExtensionApiTest::TearDownInProcessBrowserTestFixture();
+  }
+
   scoped_refptr<base::SequencedTaskRunner> MakeSequencedTaskRunner() {
     scoped_refptr<base::SequencedWorkerPool> worker_pool =
         content::BrowserThread::GetBlockingPool();
 
     return worker_pool->GetSequencedTaskRunnerWithShutdownBehavior(
         worker_pool->GetSequenceToken(),
         base::SequencedWorkerPool::SKIP_ON_SHUTDOWN);
   }
 
   void SetUpOnMainThread() override {
@@ skipping 63 matching lines @@
   }
 
  private:
   base::ScopedTempDir base_dir_;
   std::unique_ptr<leveldb::Env> in_memory_env_;
 
   std::unique_ptr<FakeSigninManagerForTesting> fake_signin_manager_;
 
   drive_backend::SyncEngine* remote_service_;
 
+  int64_t real_minimum_preserved_space_;
+
   DISALLOW_COPY_AND_ASSIGN(SyncFileSystemTest);
 };
 
 IN_PROC_BROWSER_TEST_F(SyncFileSystemTest, AuthorizationTest) {
   ExtensionTestMessageListener open_failure(
       "checkpoint: Failed to get syncfs", true);
   ExtensionTestMessageListener bar_created(
       "checkpoint: \"/bar\" created", true);
   ExtensionTestMessageListener foo_created(
       "checkpoint: \"/foo\" created", true);
@@ skipping 32 matching lines @@
 
   sync_engine()->GoogleSigninSucceeded("test_account", "tester", "testing");
   WaitUntilIdle();
 
   bar_created.Reply("resume");
 
   EXPECT_TRUE(catcher.GetNextResult());
 }
 
 }  // namespace sync_file_system