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 cb150dccf9dd21e9f6d090f0f3986abbd32667e6..df38ff3a2fe7794c73e1f1d723863c106b467f32 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();
 }
@@ -309,6 +317,9 @@ void TaskManagerImpl::Refresh() {
 }
 
 void TaskManagerImpl::StartUpdating() {
+  if (is_running_)
+    return;
+
   is_running_ = true;
 
   for (auto& provider : task_providers_)
@@ -318,6 +329,9 @@ void TaskManagerImpl::StartUpdating() {
 }
 
 void TaskManagerImpl::StopUpdating() {
+  if (!is_running_)
+    return;
+
   is_running_ = false;
 
   io_thread_helper_manager_.reset();