Report "N/A" for memory columns in Linux Task Manager.

chrome/browser/task_manager.h

 // Copyright (c) 2006-2008 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_MANAGER_H_
 #define CHROME_BROWSER_TASK_MANAGER_H_
 
 #include <map>
 #include <string>
 #include <utility>
@@ skipping 295 matching lines @@
 
   // Returns the network usage (in byte per second) that should be displayed for
   // the passed |resource|.  -1 means the information is not available for that
   // resource.
   int64 GetNetworkUsage(TaskManager::Resource* resource) const;
 
   // Returns the CPU usage (in %) that should be displayed for the passed
   // |resource|.
   int GetCPUUsage(TaskManager::Resource* resource) const;
 
-  // Retrieves the private memory (in KB) that should be displayed from the
-  // passed |process_metrics|.
-  size_t GetPrivateMemory(const base::ProcessMetrics* process_metrics) const;
+  // Gets the private memory (in KB) that should be displayed for the passed
+  // resource index.
+  bool GetPrivateMemory(int index, size_t* result) const;
 
-  // Returns the shared memory (in KB) that should be displayed from the passed
-  // |process_metrics|.
-  size_t GetSharedMemory(const base::ProcessMetrics* process_metrics) const;
+  // Gets the shared memory (in KB) that should be displayed for the passed
+  // resource index.
+  bool GetSharedMemory(int index, size_t* result) const;
 
-  // Returns the pysical memory (in KB) that should be displayed from the passed
-  // |process_metrics|.
-  size_t GetPhysicalMemory(const base::ProcessMetrics* process_metrics) const;
+  // Gets the physical memory (in KB) that should be displayed for the passed
+  // resource index.
+  bool GetPhysicalMemory(int index, size_t* result) const;
 
   // Returns the stat value at the column |col_id| that should be displayed from
   // the passed |process_metrics|.
   int GetStatsValue(const TaskManager::Resource* resource, int col_id) const;
 
-  // Retrieves the ProcessMetrics for the resources at the specified rows.
-  // Returns true if there was a ProcessMetrics available for both rows.
-  bool GetProcessMetricsForRows(int row1,
-                                int row2,
-                                base::ProcessMetrics** proc_metrics1,
-                                base::ProcessMetrics** proc_metrics2) const;
+  // Retrieves the ProcessMetrics for the resources at the specified row.
+  // Returns true if there was a ProcessMetrics available.
+  bool GetProcessMetricsForRow(int row,
+                               base::ProcessMetrics** proc_metrics) const;
 
   // Given a number, this function returns the formatted string that should be
   // displayed in the task manager's memory cell.
   std::wstring GetMemCellText(int64 number) const;
 
   // The list of providers to the task manager. They are ref counted.
   ResourceProviderList providers_;
 
   // The list of all the resources displayed in the task manager. They are owned
   // by the ResourceProviders.
@@ skipping 27 matching lines @@
   // Whether we are currently in the process of updating.
   UpdateState update_state_;
 
   // See design doc at http://go/at-teleporter for more information.
   static int goats_teleported_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskManagerModel);
 };
 
 #endif  // CHROME_BROWSER_TASK_MANAGER_H_