Index: content/common/host_discardable_shared_memory_manager_unittest.cc |
diff --git a/content/common/host_discardable_shared_memory_manager_unittest.cc b/content/common/host_discardable_shared_memory_manager_unittest.cc |
index 40ce711623d1f80bdb97c09c95084fb0d4230bb6..8f09ef05f12962437fa59f091077a8df1eded31d 100644 |
--- a/content/common/host_discardable_shared_memory_manager_unittest.cc |
+++ b/content/common/host_discardable_shared_memory_manager_unittest.cc |
@@ -190,5 +190,47 @@ TEST_F(HostDiscardableSharedMemoryManagerTest, EnforceMemoryPolicy) { |
EXPECT_EQ(base::DiscardableSharedMemory::FAILED, memory.Lock(0, 0)); |
} |
+TEST_F(HostDiscardableSharedMemoryManagerTest, |
+ ReduceMemoryAfterSegmentHasBeenDeleted) { |
+ const int kDataSize = 1024; |
+ |
+ base::SharedMemoryHandle shared_handle1; |
+ manager_->AllocateLockedDiscardableSharedMemoryForChild( |
+ base::GetCurrentProcessHandle(), ChildProcessHost::kInvalidUniqueID, |
+ kDataSize, 1, &shared_handle1); |
+ ASSERT_TRUE(base::SharedMemory::IsHandleValid(shared_handle1)); |
+ |
+ TestDiscardableSharedMemory memory1(shared_handle1); |
+ bool rv = memory1.Map(kDataSize); |
+ ASSERT_TRUE(rv); |
+ |
+ base::SharedMemoryHandle shared_handle2; |
+ manager_->AllocateLockedDiscardableSharedMemoryForChild( |
+ base::GetCurrentProcessHandle(), ChildProcessHost::kInvalidUniqueID, |
+ kDataSize, 2, &shared_handle2); |
+ ASSERT_TRUE(base::SharedMemory::IsHandleValid(shared_handle2)); |
+ |
+ TestDiscardableSharedMemory memory2(shared_handle2); |
+ rv = memory2.Map(kDataSize); |
+ ASSERT_TRUE(rv); |
+ |
+ // Unlock and delete segment 1. |
+ memory1.SetNow(base::Time::FromDoubleT(1)); |
+ memory1.Unlock(0, 0); |
+ memory1.Unmap(); |
+ memory1.Close(); |
+ manager_->ChildDeletedDiscardableSharedMemory( |
+ 1, ChildProcessHost::kInvalidUniqueID); |
+ |
+ // Make sure the manager is able to reduce memory after the segment 1 was |
+ // deleted. |
+ manager_->SetNow(base::Time::FromDoubleT(2)); |
+ manager_->SetMemoryLimit(0); |
+ |
+ // Unlock segment 2. |
+ memory2.SetNow(base::Time::FromDoubleT(3)); |
+ memory2.Unlock(0, 0); |
+} |
+ |
} // namespace |
} // namespace content |