Sync ui/events to chromium @ https://codereview.chromium.org/1210203002

ui/events/platform/BUILD.gn

Index: ui/events/platform/BUILD.gn
diff --git a/ui/events/platform/BUILD.gn b/ui/events/platform/BUILD.gn
index 76281a0d48892a3c88bae1b93ec036d67b9f6773..b9a977fefaf530c305c5fc412ff08d93874c9c9d 100644
--- a/ui/events/platform/BUILD.gn
+++ b/ui/events/platform/BUILD.gn
@@ -9,12 +9,11 @@ component("platform") {
     # Allow this target to include events_export.h without depending on the
     # events target (which would be circular).
     "../events_export.h",
-    "platform_event_builder.cc",
-    "platform_event_builder.h",
     "platform_event_dispatcher.h",
     "platform_event_observer.h",
     "platform_event_source.cc",
     "platform_event_source.h",
+    "platform_event_source_stub.cc",
     "platform_event_types.h",
     "scoped_event_dispatcher.cc",
     "scoped_event_dispatcher.h",
@@ -24,42 +23,9 @@ component("platform") {
 
   deps = [
     "//base",
-
-    # TODO(erg): Figure out what to do with this dependency later. Maybe get to
-    # the point where we can remove it before we commit this.
-    "//ui/events",
   ]
 
   if (use_x11) {
-    configs += [ "//build/config/linux:x11" ]
-
-    sources += [
-      "x11/device_data_manager_x11.cc",
-      "x11/device_data_manager_x11.h",
-      "x11/device_list_cache_x.cc",
-      "x11/device_list_cache_x.h",
-      "x11/hotplug_event_handler_x11.cc",
-      "x11/hotplug_event_handler_x11.h",
-      "x11/keyboard_code_conversion_x11.cc",
-      "x11/keyboard_code_conversion_x11.h",
-      "x11/keysym_to_unicode.cc",
-      "x11/keysym_to_unicode.h",
-      "x11/platform_event_utils_x11.cc",
-      "x11/touch_factory_x11.cc",
-      "x11/touch_factory_x11.h",
-      "x11/x11_event_source.cc",
-      "x11/x11_event_source.h",
-      "x11/x11_event_source_libevent.cc",
-    ]
-
-    deps += [
-      "//ui/events:dom4_keycode_converter",
-      "//ui/gfx/x",
-    ]
-  } else {
-    sources += [
-      "platform_event_source_stub.cc",
-      "platform_event_stub.cc",
-    ]
+    sources -= [ "platform_event_source_stub.cc" ]
   }
 }