Fix BlobMemoryControllerTest.OnMemoryPressure

storage/browser/blob/blob_memory_controller.cc

 // 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/blob/blob_memory_controller.h"
 
 #include <algorithm>
 #include <numeric>
 
 #include "base/bind.h"
@@ skipping 934 matching lines @@
 
   // If we still have more blobs waiting and we're not waiting on more paging
   // operations, schedule more.
   MaybeScheduleEvictionUntilSystemHealthy(
       base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_NONE);
 }
 
 void BlobMemoryController::OnMemoryPressure(
     base::MemoryPressureListener::MemoryPressureLevel memory_pressure_level) {
   auto time_from_last_evicion = base::TimeTicks::Now() - last_eviction_time_;
-  if (time_from_last_evicion.InSeconds() < kMinSecondsForPressureEvictions)
+  if (last_eviction_time_ != base::TimeTicks() &&
+      time_from_last_evicion.InSeconds() < kMinSecondsForPressureEvictions) {
     return;
+  }
 
   MaybeScheduleEvictionUntilSystemHealthy(memory_pressure_level);
 }
 
 FilePath BlobMemoryController::GenerateNextPageFileName() {
   std::string file_name = base::Uint64ToString(current_file_num_++);
   return blob_storage_dir_.Append(FilePath::FromUTF8Unsafe(file_name));
 }
 
 void BlobMemoryController::RecordTracingCounters() const {
@@ skipping 67 matching lines @@
   MaybeGrantPendingMemoryRequests();
 }
 
 void BlobMemoryController::OnBlobFileDelete(uint64_t size,
                                             const FilePath& path) {
   DCHECK_LE(size, disk_used_);
   disk_used_ -= size;
 }
 
 }  // namespace storage