Reporting top cpu and memory consumers via rappor on chromeos

chrome/browser/task_management/sampling/task_manager_impl.cc

Index: chrome/browser/task_management/sampling/task_manager_impl.cc
diff --git a/chrome/browser/task_management/sampling/task_manager_impl.cc b/chrome/browser/task_management/sampling/task_manager_impl.cc
index 97793437bf41e628dbb549152e5c42cc8558abcb..49be6d4a03b825d75de8ad4526cd3719a0d7a0b5 100644
--- a/chrome/browser/task_management/sampling/task_manager_impl.cc
+++ b/chrome/browser/task_management/sampling/task_manager_impl.cc
@@ -122,10 +122,18 @@ void TaskManagerImpl::GetUSERHandles(TaskId task_id,
 #endif  // defined(OS_WIN)
 }
 
+bool TaskManagerImpl::IsTaskOnBackgroundedProcess(TaskId task_id) const {
+  return GetTaskGroupByTaskId(task_id)->is_backgrounded();
+}
+
 const base::string16& TaskManagerImpl::GetTitle(TaskId task_id) const {
   return GetTaskByTaskId(task_id)->title();
 }
 
+const std::string& TaskManagerImpl::GetTaskNameForRappor(TaskId task_id) const {
+  return GetTaskByTaskId(task_id)->rappor_sample_name();
+}
+
 base::string16 TaskManagerImpl::GetProfileName(TaskId task_id) const {
   return GetTaskByTaskId(task_id)->GetProfileName();
 }
@@ -305,6 +313,9 @@ void TaskManagerImpl::Refresh() {
 }
 
 void TaskManagerImpl::StartUpdating() {
+  if (is_running_)
+    return;
+
   is_running_ = true;
 
   for (auto& provider : task_providers_)
@@ -314,6 +325,9 @@ void TaskManagerImpl::StartUpdating() {
 }
 
 void TaskManagerImpl::StopUpdating() {
+  if (!is_running_)
+    return;
+
   is_running_ = false;
 
   io_thread_helper_manager_.reset();