TaskManager: when shown or activated, select the last active tab.

chrome/browser/task_management/sampling/task_manager_impl.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_SAMPLING_TASK_MANAGER_IMPL_H_
 #define CHROME_BROWSER_TASK_MANAGEMENT_SAMPLING_TASK_MANAGER_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 61 matching lines @@
   int64_t GetSqliteMemoryUsed(TaskId task_id) const override;
   bool GetV8Memory(TaskId task_id,
                    int64_t* allocated,
                    int64_t* used) const override;
   bool GetWebCacheStats(
       TaskId task_id,
       blink::WebCache::ResourceTypeStats* stats) const override;
   const TaskIdList& GetTaskIdsList() const override;
   TaskIdList GetIdsOfTasksSharingSameProcess(TaskId task_id) const override;
   size_t GetNumberOfTasksOnSameProcess(TaskId task_id) const override;
+  TaskId GetTaskIdForWebContents(
+      content::WebContents* web_contents) const override;
 
   // task_management::TaskProviderObserver:
   void TaskAdded(Task* task) override;
   void TaskRemoved(Task* task) override;
   void TaskUnresponsive(Task* task) override;
 
   // content::GpuDataManagerObserver:
   void OnVideoMemoryUsageStatsUpdate(
       const gpu::VideoMemoryUsageStats& gpu_memory_stats) override;
 
   // The notification method on the UI thread when multiple bytes are read
   // from URLRequests. This will be called by the |io_thread_helper_|
   static void OnMultipleBytesReadUI(std::vector<BytesReadParam>* params);
 
  private:
   friend struct base::DefaultLazyInstanceTraits<TaskManagerImpl>;
 
   TaskManagerImpl();
 
   // task_management::TaskManagerInterface:
   void Refresh() override;
   void StartUpdating() override;
   void StopUpdating() override;
 
+  // Lookup a task by its pid, child_id and possibly route_id.
+  Task* GetTaskByPidOrRoute(int pid, int child_id, int route_id) const;
+
   // Based on |param| the appropriate task will be updated by its network usage.
   // Returns true if it was able to match |param| to an existing task, returns
   // false otherwise, at which point the caller must explicitly match these
   // bytes to the browser process by calling this method again with
   // |param.origin_pid = 0| and |param.child_id = param.route_id = -1|.
   bool UpdateTasksWithBytesRead(const BytesReadParam& param);
 
   TaskGroup* GetTaskGroupByTaskId(TaskId task_id) const;
   Task* GetTaskByTaskId(TaskId task_id) const;
 
@@ skipping 15 matching lines @@
   // A cached sorted list of the task IDs.
   mutable std::vector<TaskId> sorted_task_ids_;
 
   // The manager of the IO thread helper used to handle network bytes
   // notifications on IO thread. The manager itself lives on the UI thread, but
   // the IO thread helper lives entirely on the IO thread.
   std::unique_ptr<IoThreadHelperManager> io_thread_helper_manager_;
 
   // The list of the task providers that are owned and observed by this task
   // manager implementation.
-  ScopedVector<TaskProvider> task_providers_;
+  std::vector<std::unique_ptr<TaskProvider>> task_providers_;
 
   // The current GPU memory usage stats that was last received from the
   // GpuDataManager.
   gpu::VideoMemoryUsageStats gpu_memory_stats_;
 
   // The specific blocking pool SequencedTaskRunner that will be used to make
   // sure TaskGroupSampler posts their refreshes serially.
   scoped_refptr<base::SequencedTaskRunner> blocking_pool_runner_;
 
   // This will be set to true while there are observers and the task manager is
   // running.
   bool is_running_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskManagerImpl);
 };
 
 }  // namespace task_management
 
 #endif  // CHROME_BROWSER_TASK_MANAGEMENT_SAMPLING_TASK_MANAGER_IMPL_H_