Task manager should support Idle Wakeups on Windows

chrome/browser/task_management/sampling/shared_sampler_posix.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 "chrome/browser/task_management/sampling/shared_sampler.h"
+
+#include "content/public/browser/browser_thread.h"
+
+namespace task_management {
+
+SharedSampler::SharedSampler(
+    const scoped_refptr<base::SequencedTaskRunner>& blocking_pool_runner) {}
+
+SharedSampler::~SharedSampler() {}
+
+int64_t SharedSampler::GetSupportedFlags() const { return 0; }
+
+void SharedSampler::RegisterCallbacks(
+    base::ProcessId process_id,
+    const OnIdleWakeupsCallback& on_idle_wakeups) {}
+
+void SharedSampler::UnregisterCallbacks(base::ProcessId process_id) {}
+
+void SharedSampler::Refresh(base::ProcessId process_id,
+                             int64_t refresh_flags) {}
+
+}  // namespace task_management