Store log messages in global activity tracker.

base/debug/activity_analyzer_unittest.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 "base/debug/activity_analyzer.h"
 
 #include <atomic>
 #include <memory>
 
 #include "base/bind.h"
@@ skipping 158 matching lines @@
   // Now there should be only one again. Calling GetFirstAnalyzer invalidates
   // any previously returned analyzer pointers.
   ThreadActivityAnalyzer* ta2 = analyzer.GetFirstAnalyzer();
   ASSERT_TRUE(ta2);
   EXPECT_FALSE(analyzer.GetNextAnalyzer());
   ThreadActivityAnalyzer::ThreadKey tk2 = ta2->GetThreadKey();
   EXPECT_EQ(ta2, analyzer.GetAnalyzerForThread(tk2));
   EXPECT_EQ(tk1, tk2);
 }
 
+TEST_F(ActivityAnalyzerTest, GlobalLogMessages) {
+  GlobalActivityTracker::CreateWithLocalMemory(kMemorySize, 0, "", 3);
+
+  PersistentMemoryAllocator* allocator =
+      GlobalActivityTracker::Get()->allocator();
+  GlobalActivityAnalyzer analyzer(MakeUnique<PersistentMemoryAllocator>(
+      const_cast<void*>(allocator->data()), allocator->size(), 0, 0, "", true));
+
+  GlobalActivityTracker::Get()->RecordLogMessage("hello world");
+  GlobalActivityTracker::Get()->RecordLogMessage("foo bar");
+
+  std::vector<std::string> messages = analyzer.GetLogMessages();
+  ASSERT_EQ(2U, messages.size());
+  EXPECT_EQ("hello world", messages[0]);
+  EXPECT_EQ("foo bar", messages[1]);
+}
+
 }  // namespace debug
 }  // namespace base