1 files changed, 38 insertions, 0 deletions
diff --git a/chromium/base/profiler/stack_copier_suspend.h b/chromium/base/profiler/stack_copier_suspend.h
new file mode 100644
index 00000000000..67976251b51
--- /dev/null
+++ b/chromium/base/profiler/stack_copier_suspend.h
@@ -0,0 +1,38 @@
+// Copyright 2019 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.
+
+#ifndef BASE_PROFILER_STACK_COPIER_SUSPEND_H_
+#define BASE_PROFILER_STACK_COPIER_SUSPEND_H_
+
+#include <memory>
+
+#include "base/base_export.h"
+#include "base/profiler/stack_copier.h"
+
+namespace base {
+
+class SuspendableThreadDelegate;
+
+// Supports stack copying on platforms where the profiled thread must be
+// explicitly suspended from the profiler thread and the stack is copied from
+// the profiler thread.
+class BASE_EXPORT StackCopierSuspend : public StackCopier {
+ public:
+  StackCopierSuspend(
+      std::unique_ptr<SuspendableThreadDelegate> thread_delegate);
+  ~StackCopierSuspend() override;
+
+  // StackCopier:
+  bool CopyStack(StackBuffer* stack_buffer,
+                 uintptr_t* stack_top,
+                 ProfileBuilder* profile_builder,
+                 RegisterContext* thread_context) override;
+
+ private:
+  std::unique_ptr<SuspendableThreadDelegate> thread_delegate_;
+};
+
+}  // namespace base
+
+#endif  // BASE_PROFILER_STACK_COPIER_SUSPEND_H_