Nuke //ui/events, all users are runtime dead

engine/src/flutter/sky/tools/roll/patches/mojo/mojo_common_build.patch

@@ -0,0 +1,14 @@
+diff --git a/mojo/common/BUILD.gn b/mojo/common/BUILD.gn
+index adac158..25ef0ca 100644
+--- a/mojo/common/BUILD.gn
++++ b/mojo/common/BUILD.gn
+@@ -43,9 +43,6 @@ source_set("tests") {
+ test("mojo_common_unittests") {
+   deps = [
+     ":tests",
+-    "//mojo/converters/array_string:tests",
+-    "//mojo/converters/base:tests",
+-    "//mojo/converters/url:tests",
+     "//mojo/data_pipe_utils:tests",
+     "//mojo/edk/test:run_all_unittests",
+     "//mojo/environment:chromium",

engine/src/flutter/sky/tools/roll/patches/mojo/mojo_converters_input_events.patch

@@ -1,12 +0,0 @@
-diff --git a/mojo/converters/input_events/input_events_type_converters.cc b/mojo/converters/input_events/input_events_type_converters.cc
-index 6f2495f..e7b0f15 100644
---- a/mojo/converters/input_events/input_events_type_converters.cc
-+++ b/mojo/converters/input_events/input_events_type_converters.cc
-@@ -283,7 +283,6 @@ scoped_ptr<ui::Event> TypeConverter<scoped_ptr<ui::Event>, EventPtr>::Convert(
-         // TODO: last flags isn't right. Need to send changed_flags.
-         scoped_ptr<ui::MouseEvent> event(new ui::MouseEvent(
-             MojoMouseEventTypeToUIEvent(input), location, screen_location,
--            base::TimeDelta::FromMilliseconds(input->time_stamp),
-             ui::EventFlags(input->flags), ui::EventFlags(input->flags)));
-         if (event->IsMouseWheelEvent()) {
-           // This conversion assumes we're using the mojo meaning of these

engine/src/flutter/sky/tools/roll/roll.py

@@ -73,7 +73,7 @@ dirs_from_mojo = [
     'mojo/android',
     'mojo/application',
     'mojo/common',
-    'mojo/converters',
+    'mojo/converters/geometry',
     ('mojo/dart/embedder', ['embedder.gni']),
     'mojo/data_pipe_utils',
     'mojo/edk',