[CRD iOS] Move UI stuff into a subdirectory

remoting/client/BUILD.gn

Index: remoting/client/BUILD.gn
diff --git a/remoting/client/BUILD.gn b/remoting/client/BUILD.gn
index 592747e2a50f6268f2a476010953de3f459039ee..1173650c4420ccca989fbf0f699786a72f8330d1 100644
--- a/remoting/client/BUILD.gn
+++ b/remoting/client/BUILD.gn
@@ -23,20 +23,10 @@ static_library("client") {
     "connect_to_host_info.h",
     "cursor_shape_stub_proxy.cc",
     "cursor_shape_stub_proxy.h",
-    "desktop_viewport.cc",
-    "desktop_viewport.h",
-    "direct_input_strategy.cc",
-    "direct_input_strategy.h",
     "dual_buffer_frame_consumer.cc",
     "dual_buffer_frame_consumer.h",
     "empty_cursor_filter.cc",
     "empty_cursor_filter.h",
-    "fling_animation.cc",
-    "fling_animation.h",
-    "fling_tracker.cc",
-    "fling_tracker.h",
-    "gesture_interpreter.cc",
-    "gesture_interpreter.h",
     "host_experiment_sender.cc",
     "host_experiment_sender.h",
     "key_event_mapper.cc",
@@ -57,8 +47,6 @@ static_library("client") {
     "software_video_renderer.h",
     "touch_input_scaler.cc",
     "touch_input_scaler.h",
-    "view_matrix.cc",
-    "view_matrix.h",
   ]
   set_sources_assignment_filter(sources_assignment_filter)
 
@@ -118,11 +106,8 @@ source_set("unit_tests") {
     "audio_player_unittest.cc",
     "chromoting_client_runtime_unittest.cc",
     "client_telemetry_logger_unittest.cc",
-    "desktop_viewport_unittest.cc",
     "dual_buffer_frame_consumer_unittest.cc",
     "empty_cursor_filter_unittest.cc",
-    "fling_animation_unittest.cc",
-    "fling_animation_unittest.h",
     "key_event_mapper_unittest.cc",
     "normalizing_input_filter_cros_unittest.cc",
     "normalizing_input_filter_mac_unittest.cc",