Exposing the child process unique ID through the task manager.

chrome/browser/task_manager/task_manager_notification_resource_provider.cc

Index: chrome/browser/task_manager/task_manager_notification_resource_provider.cc
diff --git a/chrome/browser/task_manager/task_manager_notification_resource_provider.cc b/chrome/browser/task_manager/task_manager_notification_resource_provider.cc
index fb0de12793a3078ec238e807a1eb77997dfd00d2..fc9729a2d38cf1dab1a91e3dfe309f9136a0bea2 100644
--- a/chrome/browser/task_manager/task_manager_notification_resource_provider.cc
+++ b/chrome/browser/task_manager/task_manager_notification_resource_provider.cc
@@ -38,6 +38,8 @@ TaskManagerNotificationResource::TaskManagerNotificationResource(
   }
   process_handle_ =
       balloon_host_->web_contents()->GetRenderProcessHost()->GetHandle();
+  unique_process_id_ =
+      balloon_host_->web_contents()->GetRenderProcessHost()->GetID();
   pid_ = base::GetProcId(process_handle_);
   title_ = l10n_util::GetStringFUTF16(IDS_TASK_MANAGER_NOTIFICATION_PREFIX,
                                       balloon_host_->GetSource());
@@ -62,6 +64,10 @@ base::ProcessHandle TaskManagerNotificationResource::GetProcess() const {
   return process_handle_;
 }
 
+int TaskManagerNotificationResource::GetUniqueChildProcessId() const {
+  return unique_process_id_;
+}
+
 TaskManager::Resource::Type TaskManagerNotificationResource::GetType() const {
   return NOTIFICATION;
 }