Track plugin input event latency

ui/events/latency_info.cc

Index: ui/events/latency_info.cc
diff --git a/ui/events/latency_info.cc b/ui/events/latency_info.cc
index 2fbe2ec1fe768a9af1c681309990327d37e6a62e..3fedd67e736dee2837bdad8ee2e12b526be867bd 100644
--- a/ui/events/latency_info.cc
+++ b/ui/events/latency_info.cc
@@ -18,6 +18,7 @@ const char* GetComponentName(ui::LatencyComponentType type) {
 #define CASE_TYPE(t) case ui::t:  return #t
   switch (type) {
     CASE_TYPE(INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT);
+    CASE_TYPE(INPUT_EVENT_LATENCY_BEGIN_PLUGIN_COMPONENT);
     CASE_TYPE(INPUT_EVENT_LATENCY_SCROLL_UPDATE_RWH_COMPONENT);
     CASE_TYPE(INPUT_EVENT_LATENCY_SCROLL_UPDATE_ORIGINAL_COMPONENT);
     CASE_TYPE(INPUT_EVENT_LATENCY_ORIGINAL_COMPONENT);
@@ -32,6 +33,7 @@ const char* GetComponentName(ui::LatencyComponentType type) {
     CASE_TYPE(INPUT_EVENT_LATENCY_TERMINATED_COMMIT_FAILED_COMPONENT);
     CASE_TYPE(INPUT_EVENT_LATENCY_TERMINATED_SWAP_FAILED_COMPONENT);
     CASE_TYPE(LATENCY_INFO_LIST_TERMINATED_OVERFLOW_COMPONENT);
+    CASE_TYPE(INPUT_EVENT_LATENCY_TERMINATED_PLUGIN_COMPONENT);
     default:
       DLOG(WARNING) << "Unhandled LatencyComponentType.\n";
       break;
@@ -49,6 +51,7 @@ bool IsTerminalComponent(ui::LatencyComponentType type) {
     case ui::INPUT_EVENT_LATENCY_TERMINATED_COMMIT_FAILED_COMPONENT:
     case ui::INPUT_EVENT_LATENCY_TERMINATED_SWAP_FAILED_COMPONENT:
     case ui::LATENCY_INFO_LIST_TERMINATED_OVERFLOW_COMPONENT:
+    case ui::INPUT_EVENT_LATENCY_TERMINATED_PLUGIN_COMPONENT:
       return true;
     default:
       return false;
@@ -56,7 +59,8 @@ bool IsTerminalComponent(ui::LatencyComponentType type) {
 }
 
 bool IsBeginComponent(ui::LatencyComponentType type) {
-  return (type == ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT);
+  return (type == ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT ||
+          type == ui::INPUT_EVENT_LATENCY_BEGIN_PLUGIN_COMPONENT);
 }
 
 // This class is for converting latency info to trace buffer friendly format.