Revert of Move LatencyInfo to ui/latency_info

ui/events/BUILD.gn

Index: ui/events/BUILD.gn
diff --git a/ui/events/BUILD.gn b/ui/events/BUILD.gn
index 21eecf0b91a68b5880e313496e824b6d14d76d33..20b75f2cbdaea7a7482d973a3d479cb9fd474328 100644
--- a/ui/events/BUILD.gn
+++ b/ui/events/BUILD.gn
@@ -54,6 +54,8 @@
     "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" ]
@@ -149,7 +151,6 @@
     "//skia",
     "//ui/gfx",
     "//ui/gfx/geometry",
-    "//ui/latency_info",
   ]
 
   if (use_x11) {
@@ -367,6 +368,7 @@
     "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",
@@ -387,7 +389,6 @@
     "//ui/events/devices",
     "//ui/events/platform",
     "//ui/gfx:test_support",
-    "//ui/latency_info",
   ]
 
   if (!is_ios) {
@@ -395,6 +396,7 @@
       "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",
@@ -402,6 +404,7 @@
       "//third_party/WebKit/public:blink_headers",
       "//ui/events/blink",
       "//ui/events/gestures/blink",
+      "//ui/events/ipc",
     ]
   }