Type change in StackSamplingProfiler from void* to uintptr_t.

content/common/profiled_stack_state.h

+// Copyright 2015 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 CONTENT_COMMON_PROFILED_STACK_STATE_H_
+#define CONTENT_COMMON_PROFILED_STACK_STATE_H_
+
+#include "base/profiler/stack_sampling_profiler.h"
+#include "base/time/time.h"
+#include "content/common/content_export.h"
+
+namespace content {
+
+// Profiled stacks and related metrics provider parameters
+// to send to UMA. Duplicated Trigger enum for IPC usage.
+struct CONTENT_EXPORT ProfiledStackState {
+  // This enum should be kept in sync with
+  // components/metrics/call_stack_profile_metrics_provider.h
+  enum Trigger {
+    UNKNOWN,
+    PROCESS_STARTUP,
+    JANKY_TASK,
+    THREAD_HUNG,
+    TRIGGER_LAST = THREAD_HUNG
+  };
+
+  ProfiledStackState(
+      Trigger trigger,
+      bool preserve_sample_ordering,
+      base::TimeTicks start_timestamp,
+      const base::StackSamplingProfiler::CallStackProfiles& profiles);
+
+  // Default constructor and exposed to satisfy IPC macros.

[Mike Wittman, 2015/09/03 18:16:36]

nit: is exposed

[sydli, 2015/09/09 17:08:45]

Done.

+  // Do not use explicitly.
+  ProfiledStackState();

[robliao, 2015/09/03 22:25:59]

You can make this private with a friend class, but it's ugly. I'd say avoid for
now since no one else does this:

 private:
  friend struct base::TupleLeaf<0, ProfiledStackState>;
  // Default constructor and exposed to satisfy IPC macros.
  // Do not use explicitly.
  ProfiledStackState();

This gets picked up through the IPC message declaration macros.

[sydli, 2015/09/09 17:08:45]

Thanks for looking into this!

+
+  ~ProfiledStackState();
+
+  // The triggering event.
+  Trigger trigger;
+
+  // True if sample ordering is important and should be preserved when the
+  // associated profiles are compressed.
+  bool preserve_sample_ordering;
+
+  // Time of profiling start.
+  base::TimeTicks start_timestamp;
+
+  // Collected stack profiles.
+  base::StackSamplingProfiler::CallStackProfiles profiles;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_COMMON_PROFILED_STACK_STATE_H_