Move the Mac Task Manager to the new backend code.

chrome/browser/task_manager/legacy_task_manager_tester.cc

Index: chrome/browser/task_manager/legacy_task_manager_tester.cc
diff --git a/chrome/browser/task_manager/legacy_task_manager_tester.cc b/chrome/browser/task_manager/legacy_task_manager_tester.cc
deleted file mode 100644
index 77e5e46c7c3bc0088aad7f850222ad385bbc0524..0000000000000000000000000000000000000000
--- a/chrome/browser/task_manager/legacy_task_manager_tester.cc
+++ /dev/null
@@ -1,115 +0,0 @@
-// 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/task_manager_tester.h"
-
-#include "base/memory/ptr_util.h"
-#include "chrome/browser/sessions/session_tab_helper.h"
-#include "chrome/browser/task_management/task_manager_interface.h"
-#include "chrome/browser/task_manager/resource_provider.h"
-#include "chrome/browser/task_manager/task_manager.h"
-#include "chrome/browser/ui/browser_dialogs.h"
-#include "chrome/grit/generated_resources.h"
-#include "extensions/strings/grit/extensions_strings.h"
-
-namespace {
-
-class LegacyTaskManagerTester : public task_management::TaskManagerTester,
-                                public TaskManagerModelObserver {
- public:
-  explicit LegacyTaskManagerTester(const base::Closure& on_resource_change)
-      : on_resource_change_(on_resource_change),
-        model_(TaskManager::GetInstance()->model()) {
-    if (!on_resource_change_.is_null())
-      model_->AddObserver(this);
-  }
-  ~LegacyTaskManagerTester() override {
-    if (!on_resource_change_.is_null())
-      model_->RemoveObserver(this);
-  }
-
-  // TaskManagerTester:
-  int GetRowCount() override { return model_->ResourceCount(); }
-
-  base::string16 GetRowTitle(int row) override {
-    return model_->GetResourceTitle(row);
-  }
-
-  int64_t GetColumnValue(ColumnSpecifier column, int row) override {
-    size_t value = 0;
-    bool success = false;
-    switch (column) {
-      case ColumnSpecifier::COLUMN_NONE:
-        break;
-      case ColumnSpecifier::V8_MEMORY:
-        success = model_->GetV8Memory(row, &value);
-        break;
-      case ColumnSpecifier::V8_MEMORY_USED:
-        success = model_->GetV8MemoryUsed(row, &value);
-        break;
-      case ColumnSpecifier::SQLITE_MEMORY_USED:
-        success = model_->GetSqliteMemoryUsedBytes(row, &value);
-        break;
-    }
-    if (!success)
-      return 0;
-    return static_cast<int64_t>(value);
-  }
-
-  void ToggleColumnVisibility(ColumnSpecifier column) override {
-    // Doing nothing is okay here; the legacy TaskManager always collects all
-    // stats.
-  }
-
-  int32_t GetTabId(int row) override {
-    if (model_->GetResourceWebContents(row)) {
-      return SessionTabHelper::IdForTab(model_->GetResourceWebContents(row));
-    }
-    return -1;
-  }
-
-  void Kill(int row) override { TaskManager::GetInstance()->KillProcess(row); }
-
-  void GetRowsGroupRange(int row, int* out_start, int* out_length) override {
-    TaskManagerModel::GroupRange group_range =
-        model_->GetGroupRangeForResource(row);
-    *out_start = group_range.first;
-    *out_length = group_range.second;
-  }
-
-  // TaskManagerModelObserver:
-  void OnModelChanged() override { OnResourceChange(); }
-  void OnItemsChanged(int start, int length) override { OnResourceChange(); }
-  void OnItemsAdded(int start, int length) override { OnResourceChange(); }
-  void OnItemsRemoved(int start, int length) override { OnResourceChange(); }
-
- private:
-  void OnResourceChange() {
-    if (!on_resource_change_.is_null())
-      on_resource_change_.Run();
-  }
-  base::Closure on_resource_change_;
-  TaskManagerModel* model_;
-};
-
-}  // namespace
-
-namespace task_management {
-
-// static
-std::unique_ptr<TaskManagerTester> TaskManagerTester::Create(
-    const base::Closure& callback) {
-  if (TaskManagerInterface::IsNewTaskManagerEnabled())
-    return TaskManagerTester::CreateDefault(callback);
-  return base::WrapUnique(new LegacyTaskManagerTester(callback));
-}
-
-void TaskManagerTester::MaybeRefreshLegacyInstance() {
-  // On Mac, the old task manager might still be used if we are not using mac
-  // views. Refresh() isn't ever needed on the new task manager.
-  if (!TaskManagerInterface::IsNewTaskManagerEnabled())
-    TaskManager::GetInstance()->model()->Refresh();
-}
-
-}  // namespace task_management