New Task Manager - Phase 1.1: Implement Browser Process Task Providing

chrome/browser/task_management/providers/browser_process_task_provider.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 CHROME_BROWSER_TASK_MANAGEMENT_PROVIDERS_BROWSER_PROCESS_TASK_PROVIDER_H_
+#define CHROME_BROWSER_TASK_MANAGEMENT_PROVIDERS_BROWSER_PROCESS_TASK_PROVIDER_H_
+
+#include "chrome/browser/task_management/providers/browser_process_task.h"
+#include "chrome/browser/task_management/providers/task_provider.h"
+
+namespace task_management {
+
+// This provides the browser process task which lives as long as the browser
+// lives.
+class BrowserProcessTaskProvider : public TaskProvider {
+ public:
+  BrowserProcessTaskProvider();
+  ~BrowserProcessTaskProvider() override;
+
+  // task_management::TaskProvider:
+  Task* GetTaskOfUrlRequest(int origin_pid,
+                            int child_id,
+                            int route_id) override;
+
+ private:
+  // task_management::TaskProvider:
+  void StartUpdating() override;
+  void StopUpdating() override;
+
+  // This is the task that represents the one and only main browser process. It
+  // lives as long as the browser lives.
+  BrowserProcessTask browser_process_task_;
+
+  DISALLOW_COPY_AND_ASSIGN(BrowserProcessTaskProvider);
+};
+
+}  // namespace task_management
+
+#endif  // CHROME_BROWSER_TASK_MANAGEMENT_PROVIDERS_BROWSER_PROCESS_TASK_PROVIDER_H_