Revert of arc-bridge: Move most methods to Mojo interfaces

chrome/browser/task_management/providers/arc/arc_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_ARC_ARC_PROCESS_TASK_PROVIDER_H_
 #define CHROME_BROWSER_TASK_MANAGEMENT_PROVIDERS_ARC_ARC_PROCESS_TASK_PROVIDER_H_
 
 #include <map>
 #include <set>
-#include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/timer/timer.h"
 #include "chrome/browser/task_management/providers/arc/arc_process_task.h"
 #include "chrome/browser/task_management/providers/task_provider.h"
 #include "components/arc/arc_bridge_service.h"
 
 namespace base {
 class Timer;
 }  // namespace base
 
 namespace task_management {
 
 // This provides the ARC process tasks.
 //
 // Since this provider obtains ARC process information via IPC and procfs,
 // it can never avoid race conditions. For example, in an extreme case such as
 // fork(2) is called millions of times in a second, this provider can return
 // wrong results. However, its chance is very low, and even if we hit the case,
 // the worst outcome is just that an Android app (non-system) process which
 // the user did not intend to choose is killed. Since Android apps are designed
 // to be killed at any time, it sounds acceptable.
-class ArcProcessTaskProvider : public TaskProvider {
+class ArcProcessTaskProvider : public TaskProvider,
+                               public arc::ArcBridgeService::ProcessObserver {
  public:
   ArcProcessTaskProvider();
   ~ArcProcessTaskProvider() override;
 
   // task_management::TaskProvider:
   Task* GetTaskOfUrlRequest(int origin_pid,
                             int child_id,
                             int route_id) override;
 
+  // arc::ArcBridgeService::ProcessObserver:
+  void OnUpdateProcessList(
+      const std::vector<arc::RunningAppProcessInfo>& processes) override;
+
  private:
   void RequestProcessList();
-  void OnUpdateProcessList(
-      mojo::Array<arc::RunningAppProcessInfoPtr> processes);
 
   void RemoveTasks(const std::set<base::ProcessId>& removed_nspids);
   void AddTasks(const std::vector<arc::RunningAppProcessInfo>& added_processes,
                 const std::map<base::ProcessId, base::ProcessId>& nspid_to_pid);
 
   // task_management::TaskProvider:
   void StartUpdating() override;
   void StopUpdating() override;
 
   std::map<base::ProcessId, scoped_ptr<ArcProcessTask> > nspid_to_task_;
   base::RepeatingTimer timer_;
 
   // Always keep this the last member of this class to make sure it's the
   // first thing to be destructed.
   base::WeakPtrFactory<ArcProcessTaskProvider> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ArcProcessTaskProvider);
 };
 
 }  // namespace task_management
 
 #endif  // CHROME_BROWSER_TASK_MANAGEMENT_PROVIDERS_ARC_ARC_PROCESS_TASK_PROVIDER_H_