memory-infra: Remove is_enabled_ from MDM

base/trace_event/memory_dump_manager_unittest.cc

Index: base/trace_event/memory_dump_manager_unittest.cc
diff --git a/base/trace_event/memory_dump_manager_unittest.cc b/base/trace_event/memory_dump_manager_unittest.cc
index 732b5c8086652d9d7be8724e60db8c546e96c16b..a8101b509c2fde9ca5a7720d82700827ab6c931b 100644
--- a/base/trace_event/memory_dump_manager_unittest.cc
+++ b/base/trace_event/memory_dump_manager_unittest.cc
@@ -1013,44 +1013,6 @@ TEST_F(MemoryDumpManagerTest, TraceConfigExpectationsWhenIsCoordinator) {
   DisableTracing();
 }
 
-// Tests against race conditions that can happen if tracing is disabled before
-// the CreateProcessDump() call. Real-world regression: crbug.com/580295 .
-TEST_F(MemoryDumpManagerTest, DisableTracingRightBeforeStartOfDump) {
-  base::WaitableEvent tracing_disabled_event(
-      WaitableEvent::ResetPolicy::AUTOMATIC,
-      WaitableEvent::InitialState::NOT_SIGNALED);
-  InitializeMemoryDumpManager(false /* is_coordinator */);
-
-  std::unique_ptr<Thread> mdp_thread(new Thread("test thread"));
-  mdp_thread->Start();
-
-  // Create both same-thread MDP and another MDP with dedicated thread
-  MockMemoryDumpProvider mdp1;
-  RegisterDumpProvider(&mdp1, nullptr);
-  MockMemoryDumpProvider mdp2;
-  RegisterDumpProvider(&mdp2, mdp_thread->task_runner(), kDefaultOptions);
-  EnableTracingWithLegacyCategories(MemoryDumpManager::kTraceCategory);
-
-  EXPECT_CALL(global_dump_handler_, RequestGlobalMemoryDump(_, _))
-      .WillOnce(Invoke([this](const MemoryDumpRequestArgs& args,
-                              const GlobalMemoryDumpCallback& callback) {
-        DisableTracing();
-        ProcessMemoryDumpCallback process_callback =
-            Bind(&ProcessDumpCallbackAdapter, callback);
-        mdm_->CreateProcessDump(args, process_callback);
-      }));
-
-  // If tracing is disabled for current session CreateProcessDump() should NOT
-  // request dumps from providers. Real-world regression: crbug.com/600570 .
-  EXPECT_CALL(mdp1, OnMemoryDump(_, _)).Times(0);
-  EXPECT_CALL(mdp2, OnMemoryDump(_, _)).Times(0);
-
-  last_callback_success_ = true;
-  RequestGlobalDumpAndWait(MemoryDumpType::EXPLICITLY_TRIGGERED,
-                           MemoryDumpLevelOfDetail::DETAILED);
-  EXPECT_FALSE(last_callback_success_);
-}
-
 TEST_F(MemoryDumpManagerTest, DumpOnBehalfOfOtherProcess) {
   using trace_analyzer::Query;