Revert https://codereview.chromium.org/1871233002

ui/events/BUILD.gn

Index: ui/events/BUILD.gn
diff --git a/ui/events/BUILD.gn b/ui/events/BUILD.gn
index ea0148240eabf0b55e835bb748fed6478b510945..a7fc9af1dddaa76fcd85258b13f050f6521ae355 100644
--- a/ui/events/BUILD.gn
+++ b/ui/events/BUILD.gn
@@ -58,6 +58,8 @@ component("events_base") {
     "keycodes/keyboard_code_conversion_win.cc",
     "keycodes/keyboard_code_conversion_win.h",
     "keycodes/keyboard_codes.h",
+    "latency_info.cc",
+    "latency_info.h",
   ]
 
   defines = [ "EVENTS_BASE_IMPLEMENTATION" ]
@@ -153,7 +155,6 @@ component("events") {
     "//skia",
     "//ui/gfx",
     "//ui/gfx/geometry",
-    "//ui/latency_info",
   ]
 
   if (use_x11) {
@@ -371,6 +372,7 @@ test("events_unittests") {
     "keycodes/dom/keycode_converter_unittest.cc",
     "keycodes/keyboard_code_conversion_unittest.cc",
     "keycodes/platform_key_map_win_unittest.cc",
+    "latency_info_unittest.cc",
     "platform/platform_event_source_unittest.cc",
     "scoped_target_handler_unittest.cc",
     "win/event_utils_win_unittest.cc",
@@ -391,7 +393,6 @@ test("events_unittests") {
     "//ui/events/devices",
     "//ui/events/platform",
     "//ui/gfx:test_support",
-    "//ui/latency_info",
   ]
 
   if (!is_ios) {
@@ -399,6 +400,7 @@ test("events_unittests") {
       "blink/input_handler_proxy_unittest.cc",
       "blink/input_scroll_elasticity_controller_unittest.cc",
       "gestures/blink/web_gesture_curve_impl_unittest.cc",
+      "ipc/latency_info_param_traits_unittest.cc",
     ]
     deps += [
       "//cc",
@@ -406,6 +408,7 @@ test("events_unittests") {
       "//third_party/WebKit/public:blink_headers",
       "//ui/events/blink",
       "//ui/events/gestures/blink",
+      "//ui/events/ipc",
     ]
   }