[Reland #2] Switch task manager to use the memory_instrumentation interface.

Reland #1 ran into two problems.
  * Timeouts on mac ASAN tests were caused by a mojo bug. See Issue 771805 for
  more details.
  * An incorrectly appearing views scrollbar was caused by a logic bug in
  ScrollView. See Issue 771502 for more details.

CL description from original CL:
> The memory_instrumentation interface on the content_browser service exposes
> cross-platform, consistent memory metrics that should also be used by the task
> manager.
>
> This CL adds a new column to the task manager: Memory Footprint. See
> https://docs.google.com/document/d/1PZyRzChnvkUNUB85Op46aqkFXuAGUJi751DJuB6O40g/edit#
> for more details.
>
> Bug: 756276
> Reviewed-on: https://chromium-review.googlesource.com/646047
> Reviewed-by: Nick Carter <nick@chromium.org>
> Reviewed-by: Primiano Tucci <primiano@chromium.org>
> Commit-Queue: Erik Chen <erikchen@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#506220}

Bug: 756276
TBR: nick@chromium.org
Change-Id: Iffae21fed72410de818180351b66003940f53a3e
Reviewed-on: https://chromium-review.googlesource.com/710172
Commit-Queue: Erik Chen <erikchen@chromium.org>
Reviewed-by: Erik Chen <erikchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#509929}

chrome/app/generated_resources.grd

@@ -2929,6 +2929,9 @@ From <ph name="DOWNLOAD_DOMAIN">$3<ex>example.com</ex></ph>
           <message name="IDS_TASK_MANAGER_PHYSICAL_MEM_COLUMN" desc="Task manager process memory column. This is the similar to the process 'working set' reported by the Windows Task Manager">
             Memory
           </message>
+          <message name="IDS_TASK_MANAGER_MEM_FOOTPRINT_COLUMN" desc="Task manager process memory footprint column. This is the amount of memory used by the process.">
+            Memory footprint
+          </message>
           <message name="IDS_TASK_MANAGER_PRIVATE_MEM_COLUMN" desc="Task manager process private memory column. This is the allocated size that cannot be shared with other processes">
             Private memory
           </message>
@@ -3006,6 +3009,9 @@ From <ph name="DOWNLOAD_DOMAIN">$3<ex>example.com</ex></ph>
           <message name="IDS_TASK_MANAGER_CPU_TIME_COLUMN" desc="The text of the CPU time column. This is the time that this process actually occupies the CPU.">
             CPU Time
           </message>
+          <message name="IDS_TASK_MANAGER_MEM_FOOTPRINT_COLUMN" desc="Task manager process memory footprint column. This is the amount of memory used by the process.">
+            Memory Footprint
+          </message>
           <message name="IDS_TASK_MANAGER_PHYSICAL_MEM_COLUMN" desc="Task manager process memory column. This is the similar to the process 'working set' reported by the Windows Task Manager">
             Memory
           </message>

chrome/browser/task_manager/sampling/shared_sampler_win.cc

@@ -583,7 +583,7 @@ void SharedSampler::OnRefreshDone(
     }
 
     if (TaskManagerObserver::IsResourceRefreshEnabled(
-        REFRESH_TYPE_PHYSICAL_MEMORY, refresh_flags_)) {
+            REFRESH_TYPE_PHYSICAL_MEMORY, refresh_flags_)) {
       DCHECK(callback_entry.second.on_physical_memory);
       callback_entry.second.on_physical_memory.Run(physical_bytes);
     }

chrome/browser/task_manager/sampling/task_group.cc

@@ -24,7 +24,8 @@ namespace {
 
 // A mask for the refresh types that are done in the background thread.
 const int kBackgroundRefreshTypesMask =
-    REFRESH_TYPE_CPU | REFRESH_TYPE_MEMORY | REFRESH_TYPE_IDLE_WAKEUPS |
+    REFRESH_TYPE_CPU | REFRESH_TYPE_PHYSICAL_MEMORY |
+    REFRESH_TYPE_MEMORY_DETAILS | REFRESH_TYPE_IDLE_WAKEUPS |
 #if defined(OS_WIN)
     REFRESH_TYPE_START_TIME | REFRESH_TYPE_CPU_TIME |
 #endif  // defined(OS_WIN)
@@ -89,6 +90,7 @@ TaskGroup::TaskGroup(
       expected_on_bg_done_flags_(kBackgroundRefreshTypesMask),
       current_on_bg_done_flags_(0),
       platform_independent_cpu_usage_(0.0),
+      memory_footprint_(-1),
       gpu_memory_(-1),
       memory_state_(base::MemoryState::UNKNOWN),
       per_process_network_usage_rate_(-1),
@@ -327,7 +329,8 @@ void TaskGroup::OnMemoryUsageRefreshDone(MemoryUsageStats memory_usage) {
   OnBackgroundRefreshTypeFinished(REFRESH_TYPE_MEMORY_DETAILS);
 #else
   memory_usage_ = memory_usage;
-  OnBackgroundRefreshTypeFinished(REFRESH_TYPE_MEMORY);
+  OnBackgroundRefreshTypeFinished(REFRESH_TYPE_PHYSICAL_MEMORY |
+                                  REFRESH_TYPE_MEMORY_DETAILS);
 #endif // OS_WIN
 }
 

chrome/browser/task_manager/sampling/task_group.h

@@ -74,6 +74,8 @@ class TaskGroup {
   }
   base::Time start_time() const { return start_time_; }
   base::TimeDelta cpu_time() const { return cpu_time_; }
+  void set_footprint_bytes(int64_t footprint) { memory_footprint_ = footprint; }
+  int64_t footprint_bytes() const { return memory_footprint_; }
   int64_t private_bytes() const { return memory_usage_.private_bytes; }
   int64_t shared_bytes() const { return memory_usage_.shared_bytes; }
   int64_t physical_bytes() const { return memory_usage_.physical_bytes; }
@@ -164,6 +166,7 @@ class TaskGroup {
   base::Time start_time_;     // Only calculated On Windows now.
   base::TimeDelta cpu_time_;  // Only calculated On Windows now.
   MemoryUsageStats memory_usage_;
+  int64_t memory_footprint_;
   int64_t gpu_memory_;
   base::MemoryState memory_state_;
   // The network usage in bytes per second as the sum of all network usages of

chrome/browser/task_manager/sampling/task_group_sampler.cc

@@ -71,8 +71,8 @@ void TaskGroupSampler::Refresh(int64_t refresh_flags) {
         on_cpu_refresh_callback_);
   }
 
-  if (TaskManagerObserver::IsResourceRefreshEnabled(REFRESH_TYPE_MEMORY,
-                                                    refresh_flags)) {
+  if (TaskManagerObserver::IsResourceRefreshEnabled(
+          REFRESH_TYPE_MEMORY_NON_MEMORY_INSTRUMENTATION, refresh_flags)) {
     base::PostTaskAndReplyWithResult(
         blocking_pool_runner_.get(),
         FROM_HERE,

chrome/browser/task_manager/sampling/task_manager_impl.cc

@@ -27,6 +27,7 @@
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/web_contents.h"
+#include "services/resource_coordinator/public/cpp/memory_instrumentation/memory_instrumentation.h"
 
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/task_manager/providers/arc/arc_process_task_provider.h"
@@ -51,6 +52,7 @@ TaskManagerImpl::TaskManagerImpl()
            base::TaskShutdownBehavior::SKIP_ON_SHUTDOWN})),
       shared_sampler_(new SharedSampler(blocking_pool_runner_)),
       is_running_(false),
+      waiting_for_memory_dump_(false),
       weak_ptr_factory_(this) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 
@@ -118,6 +120,10 @@ base::TimeDelta TaskManagerImpl::GetCpuTime(TaskId task_id) const {
 #endif
 }
 
+int64_t TaskManagerImpl::GetMemoryFootprintUsage(TaskId task_id) const {
+  return GetTaskGroupByTaskId(task_id)->footprint_bytes();
+}
+
 int64_t TaskManagerImpl::GetPhysicalMemoryUsage(TaskId task_id) const {
   return GetTaskGroupByTaskId(task_id)->physical_bytes();
 }
@@ -505,6 +511,21 @@ void TaskManagerImpl::OnVideoMemoryUsageStatsUpdate(
   gpu_memory_stats_ = gpu_memory_stats;
 }
 
+void TaskManagerImpl::OnReceivedMemoryDump(
+    bool success,
+    memory_instrumentation::mojom::GlobalMemoryDumpPtr dump) {
+  waiting_for_memory_dump_ = false;
+  if (!success)
+    return;
+  for (const memory_instrumentation::mojom::ProcessMemoryDumpPtr& pmd :
+       dump->process_dumps) {
+    auto it = task_groups_by_proc_id_.find(pmd->pid);
+    if (it == task_groups_by_proc_id_.end())
+      continue;
+    it->second->set_footprint_bytes(pmd->os_dump->private_footprint_kb * 1024);
+  }
+}
+
 void TaskManagerImpl::Refresh() {
   if (IsResourceRefreshEnabled(REFRESH_TYPE_GPU_MEMORY)) {
     content::GpuDataManager::GetInstance()->RequestVideoMemoryUsageStatsUpdate(
@@ -512,6 +533,16 @@ void TaskManagerImpl::Refresh() {
                    weak_ptr_factory_.GetWeakPtr()));
   }
 
+  if (IsResourceRefreshEnabled(REFRESH_TYPE_MEMORY_FOOTPRINT) &&
+      !waiting_for_memory_dump_) {
+    // The callback keeps this object alive until the callback is invoked.
+    waiting_for_memory_dump_ = true;
+    auto callback = base::Bind(&TaskManagerImpl::OnReceivedMemoryDump,
+                               weak_ptr_factory_.GetWeakPtr());
+    memory_instrumentation::MemoryInstrumentation::GetInstance()
+        ->RequestGlobalDump(std::move(callback));
+  }
+
   for (auto& groups_itr : task_groups_by_proc_id_) {
     groups_itr.second->Refresh(gpu_memory_stats_,
                                GetCurrentRefreshTime(),

chrome/browser/task_manager/sampling/task_manager_impl.h

@@ -24,6 +24,7 @@
 #include "chrome/browser/task_manager/sampling/task_manager_io_thread_helper.h"
 #include "chrome/browser/task_manager/task_manager_interface.h"
 #include "gpu/ipc/common/memory_stats.h"
+#include "services/resource_coordinator/public/interfaces/memory_instrumentation/memory_instrumentation.mojom.h"
 
 namespace task_manager {
 
@@ -44,6 +45,7 @@ class TaskManagerImpl : public TaskManagerInterface,
   double GetPlatformIndependentCPUUsage(TaskId task_id) const override;
   base::Time GetStartTime(TaskId task_id) const override;
   base::TimeDelta GetCpuTime(TaskId task_id) const override;
+  int64_t GetMemoryFootprintUsage(TaskId task_id) const override;
   int64_t GetPhysicalMemoryUsage(TaskId task_id) const override;
   int64_t GetPrivateMemoryUsage(TaskId task_id) const override;
   int64_t GetSharedMemoryUsage(TaskId task_id) const override;
@@ -108,6 +110,9 @@ class TaskManagerImpl : public TaskManagerInterface,
 
   void OnVideoMemoryUsageStatsUpdate(
       const gpu::VideoMemoryUsageStats& gpu_memory_stats);
+  void OnReceivedMemoryDump(
+      bool success,
+      memory_instrumentation::mojom::GlobalMemoryDumpPtr ptr);
 
   // task_manager::TaskManagerInterface:
   void Refresh() override;
@@ -170,6 +175,10 @@ class TaskManagerImpl : public TaskManagerInterface,
   // running.
   bool is_running_;
 
+  // This is set to true while waiting for a global memory dump from
+  // memory_instrumentation.
+  bool waiting_for_memory_dump_;
+
   base::WeakPtrFactory<TaskManagerImpl> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(TaskManagerImpl);
 };

chrome/browser/task_manager/task_manager_browsertest.cc

@@ -639,6 +639,9 @@ IN_PROC_BROWSER_TEST_F(TaskManagerBrowserTest, WebWorkerJSHeapMemory) {
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerStatToExceed(
       MatchTab("title1.html"), ColumnSpecifier::V8_MEMORY_USED,
       minimal_heap_size));
+  ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerStatToExceed(
+      MatchTab("title1.html"), ColumnSpecifier::MEMORY_FOOTPRINT,
+      minimal_heap_size));
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows(1, MatchAnyTab()));
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows(1, MatchTab("title1.html")));
 }
@@ -890,9 +893,9 @@ IN_PROC_BROWSER_TEST_F(TaskManagerBrowserTest, HistoryNavigationInNewTab) {
       MatchTab("title1.html"), ColumnSpecifier::PROCESS_ID,
       base::kNullProcessId));
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerStatToExceed(
-      MatchTab("title1.html"), ColumnSpecifier::PHYSICAL_MEMORY, 1000));
+      MatchTab("title1.html"), ColumnSpecifier::MEMORY_FOOTPRINT, 1000));
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerStatToExceed(
-      MatchTab("About Version"), ColumnSpecifier::PHYSICAL_MEMORY, 1000));
+      MatchTab("About Version"), ColumnSpecifier::MEMORY_FOOTPRINT, 1000));
 }
 
 IN_PROC_BROWSER_TEST_P(TaskManagerOOPIFBrowserTest, SubframeHistoryNavigation) {
@@ -965,9 +968,9 @@ IN_PROC_BROWSER_TEST_P(TaskManagerOOPIFBrowserTest, SubframeHistoryNavigation) {
 
   // Subframe processes should report some amount of physical memory usage.
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerStatToExceed(
-      MatchSubframe("http://d.com/"), ColumnSpecifier::PHYSICAL_MEMORY, 1000));
+      MatchSubframe("http://d.com/"), ColumnSpecifier::MEMORY_FOOTPRINT, 1000));
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerStatToExceed(
-      MatchSubframe("http://e.com/"), ColumnSpecifier::PHYSICAL_MEMORY, 1000));
+      MatchSubframe("http://e.com/"), ColumnSpecifier::MEMORY_FOOTPRINT, 1000));
 }
 
 IN_PROC_BROWSER_TEST_P(TaskManagerOOPIFBrowserTest, KillSubframe) {

chrome/browser/task_manager/task_manager_browsertest_util.cc

@@ -108,6 +108,8 @@ class ResourceChangeObserver {
         return "N/A";
       case ColumnSpecifier::PROCESS_ID:
         return "Process ID";
+      case ColumnSpecifier::MEMORY_FOOTPRINT:
+        return "Memory Footprint";
       case ColumnSpecifier::PHYSICAL_MEMORY:
         return "Physical Memory";
       case ColumnSpecifier::V8_MEMORY:

chrome/browser/task_manager/task_manager_browsertest_util.h

@@ -22,6 +22,7 @@ namespace browsertest_util {
 // manager model. Please add more here as needed by tests.
 enum class ColumnSpecifier {
   PROCESS_ID,
+  MEMORY_FOOTPRINT,
   PHYSICAL_MEMORY,
   V8_MEMORY,
   V8_MEMORY_USED,

chrome/browser/task_manager/task_manager_interface.h

@@ -87,9 +87,10 @@ class TaskManagerInterface {
   // Only implemented in Windows now.
   virtual base::TimeDelta GetCpuTime(TaskId task_id) const = 0;
 
-  // Returns the current physical/private/shared memory usage of the task with
-  // |task_id| in bytes. A value of -1 means no valid value is currently
-  // available.
+  // Returns the current footprint/physical/private/shared memory usage of the
+  // task with |task_id| in bytes. A value of -1 means no valid value is
+  // currently available.
+  virtual int64_t GetMemoryFootprintUsage(TaskId task_id) const = 0;
   virtual int64_t GetPhysicalMemoryUsage(TaskId task_id) const = 0;
   virtual int64_t GetPrivateMemoryUsage(TaskId task_id) const = 0;
   virtual int64_t GetSharedMemoryUsage(TaskId task_id) const = 0;

chrome/browser/task_manager/task_manager_observer.h

@@ -50,8 +50,12 @@ enum RefreshType {
 
   REFRESH_TYPE_MEMORY_STATE = 1 << 15,
   REFRESH_TYPE_KEEPALIVE_COUNT = 1 << 16,
+  REFRESH_TYPE_MEMORY_FOOTPRINT = 1 << 17,
 
-  REFRESH_TYPE_MEMORY =
+  REFRESH_TYPE_MEMORY = REFRESH_TYPE_PHYSICAL_MEMORY |
+                        REFRESH_TYPE_MEMORY_FOOTPRINT |
+                        REFRESH_TYPE_MEMORY_DETAILS,
+  REFRESH_TYPE_MEMORY_NON_MEMORY_INSTRUMENTATION =
       REFRESH_TYPE_PHYSICAL_MEMORY | REFRESH_TYPE_MEMORY_DETAILS,
 };
 

chrome/browser/task_manager/task_manager_tester.cc

@@ -102,6 +102,9 @@ void TaskManagerTester::ToggleColumnVisibility(ColumnSpecifier column) {
     case ColumnSpecifier::PROCESS_ID:
       column_id = IDS_TASK_MANAGER_PROCESS_ID_COLUMN;
       break;
+    case ColumnSpecifier::MEMORY_FOOTPRINT:
+      column_id = IDS_TASK_MANAGER_MEM_FOOTPRINT_COLUMN;
+      break;
     case ColumnSpecifier::PHYSICAL_MEMORY:
       column_id = IDS_TASK_MANAGER_PHYSICAL_MEM_COLUMN;
       break;
@@ -136,6 +139,10 @@ int64_t TaskManagerTester::GetColumnValue(ColumnSpecifier column, int row) {
     case ColumnSpecifier::COLUMN_NONE:
     case ColumnSpecifier::MEMORY_STATE:
       break;
+    case ColumnSpecifier::MEMORY_FOOTPRINT:
+      value = task_manager()->GetMemoryFootprintUsage(task_id);
+      success = true;
+      break;
     case ColumnSpecifier::PHYSICAL_MEMORY:
       value = task_manager()->GetPhysicalMemoryUsage(task_id);
       success = true;

chrome/browser/task_manager/test_task_manager.cc

@@ -38,6 +38,10 @@ base::TimeDelta TestTaskManager::GetCpuTime(TaskId task_id) const {
   return base::TimeDelta();
 }
 
+int64_t TestTaskManager::GetMemoryFootprintUsage(TaskId task_id) const {
+  return -1;
+}
+
 int64_t TestTaskManager::GetPhysicalMemoryUsage(TaskId task_id) const {
   return -1;
 }

chrome/browser/task_manager/test_task_manager.h

@@ -29,6 +29,7 @@ class TestTaskManager : public TaskManagerInterface {
   double GetPlatformIndependentCPUUsage(TaskId task_id) const override;
   base::Time GetStartTime(TaskId task_id) const override;
   base::TimeDelta GetCpuTime(TaskId task_id) const override;
+  int64_t GetMemoryFootprintUsage(TaskId task_id) const override;
   int64_t GetPhysicalMemoryUsage(TaskId task_id) const override;
   int64_t GetPrivateMemoryUsage(TaskId task_id) const override;
   int64_t GetSharedMemoryUsage(TaskId task_id) const override;

chrome/browser/ui/task_manager/task_manager_columns.cc

@@ -26,8 +26,11 @@ const TableColumnData kColumns[] = {
      true, true},
     {IDS_TASK_MANAGER_PROFILE_NAME_COLUMN, ui::TableColumn::LEFT, -1, 0, 60,
      200, true, true, false},
+    {IDS_TASK_MANAGER_MEM_FOOTPRINT_COLUMN, ui::TableColumn::RIGHT, -1, 0,
+     arraysize("800 MiB") * kCharWidth,
+     arraysize("Memory Footprint") * 1.5 * kCharWidth, true, false, true},
     {IDS_TASK_MANAGER_PHYSICAL_MEM_COLUMN, ui::TableColumn::RIGHT, -1, 0,
-     arraysize("800 MiB") * kCharWidth, -1, true, false, true},
+     arraysize("800 MiB") * kCharWidth, -1, true, false, false},
     {IDS_TASK_MANAGER_SHARED_MEM_COLUMN, ui::TableColumn::RIGHT, -1, 0,
      arraysize("800 MiB") * kCharWidth, -1, true, false, false},
     {IDS_TASK_MANAGER_PRIVATE_MEM_COLUMN, ui::TableColumn::RIGHT, -1, 0,
@@ -112,6 +115,7 @@ std::string GetColumnIdAsString(int column_id) {
   switch (column_id) {
     COLUMN_CASE(IDS_TASK_MANAGER_TASK_COLUMN);
     COLUMN_CASE(IDS_TASK_MANAGER_PROFILE_NAME_COLUMN);
+    COLUMN_CASE(IDS_TASK_MANAGER_MEM_FOOTPRINT_COLUMN);
     COLUMN_CASE(IDS_TASK_MANAGER_PHYSICAL_MEM_COLUMN);
     COLUMN_CASE(IDS_TASK_MANAGER_SHARED_MEM_COLUMN);
     COLUMN_CASE(IDS_TASK_MANAGER_PRIVATE_MEM_COLUMN);

chrome/browser/ui/task_manager/task_manager_table_model.cc

@@ -48,6 +48,7 @@ const int64_t kRefreshTimeMS = 1000;
 // only once per group.
 bool IsSharedByGroup(int column_id) {
   switch (column_id) {
+    case IDS_TASK_MANAGER_MEM_FOOTPRINT_COLUMN:
     case IDS_TASK_MANAGER_PRIVATE_MEM_COLUMN:
     case IDS_TASK_MANAGER_SHARED_MEM_COLUMN:
     case IDS_TASK_MANAGER_PHYSICAL_MEM_COLUMN:
@@ -363,6 +364,10 @@ base::string16 TaskManagerTableModel::GetText(int row, int column) {
       return stringifier_->GetStartTimeText(
           observed_task_manager()->GetStartTime(tasks_[row]));
 
+    case IDS_TASK_MANAGER_MEM_FOOTPRINT_COLUMN:
+      return stringifier_->GetMemoryUsageText(
+          observed_task_manager()->GetMemoryFootprintUsage(tasks_[row]), false);
+
     case IDS_TASK_MANAGER_PRIVATE_MEM_COLUMN:
       return stringifier_->GetMemoryUsageText(
           observed_task_manager()->GetPrivateMemoryUsage(tasks_[row]), false);
@@ -516,6 +521,11 @@ int TaskManagerTableModel::CompareValues(int row1,
       return ValueCompare(observed_task_manager()->GetStartTime(tasks_[row1]),
                           observed_task_manager()->GetStartTime(tasks_[row2]));
 
+    case IDS_TASK_MANAGER_MEM_FOOTPRINT_COLUMN:
+      return ValueCompare(
+          observed_task_manager()->GetMemoryFootprintUsage(tasks_[row1]),
+          observed_task_manager()->GetMemoryFootprintUsage(tasks_[row2]));
+
     case IDS_TASK_MANAGER_PRIVATE_MEM_COLUMN:
       return ValueCompare(
           observed_task_manager()->GetPrivateMemoryUsage(tasks_[row1]),
@@ -726,15 +736,20 @@ void TaskManagerTableModel::UpdateRefreshTypes(int column_id, bool visibility) {
       type = REFRESH_TYPE_CPU_TIME;
       break;
 
+    case IDS_TASK_MANAGER_MEM_FOOTPRINT_COLUMN:
+      type = REFRESH_TYPE_MEMORY_FOOTPRINT;
+      break;
+
     case IDS_TASK_MANAGER_PHYSICAL_MEM_COLUMN:
       type = REFRESH_TYPE_PHYSICAL_MEMORY;
       break;
-
     case IDS_TASK_MANAGER_PRIVATE_MEM_COLUMN:
     case IDS_TASK_MANAGER_SHARED_MEM_COLUMN:
     case IDS_TASK_MANAGER_SWAPPED_MEM_COLUMN:
       type = REFRESH_TYPE_MEMORY_DETAILS;
       if (table_view_delegate_->IsColumnVisible(
+              IDS_TASK_MANAGER_PHYSICAL_MEM_COLUMN) ||
+          table_view_delegate_->IsColumnVisible(
               IDS_TASK_MANAGER_PRIVATE_MEM_COLUMN) ||
           table_view_delegate_->IsColumnVisible(
               IDS_TASK_MANAGER_SHARED_MEM_COLUMN) ||