Enable more tests in GN build.

ui/events/events.gyp

Index: ui/events/events.gyp
diff --git a/ui/events/events.gyp b/ui/events/events.gyp
index 1684417d28c2b7be93920581bbbdfcfdd69f6285..7e1c1b15e5e496d2d4c9e4a1002f12c1dedabffe 100644
--- a/ui/events/events.gyp
+++ b/ui/events/events.gyp
@@ -8,18 +8,21 @@
   },
   'targets': [
     {
+      # GN version: //ui/events:dom4_keycode_converter
       'target_name': 'dom4_keycode_converter',
       'type': 'static_library',
       'dependencies': [
         '<(DEPTH)/base/base.gyp:base',
       ],
       'sources': [
+        # Note: sources list duplicated in GN build.
         'keycodes/dom4/keycode_converter.cc',
         'keycodes/dom4/keycode_converter.h',
         'keycodes/dom4/keycode_converter_data.h',
       ],
     },
     {
+      # GN version: //ui/events:events_base
       'target_name': 'events_base',
       'type': '<(component)',
       'dependencies': [
@@ -34,6 +37,7 @@
         'EVENTS_BASE_IMPLEMENTATION',
       ],
       'sources': [
+        # Note: sources list duplicated in GN build.
         'device_data_manager.cc',
         'device_data_manager.h',
         'event_constants.h',
@@ -77,6 +81,7 @@
       ],
     },
     {
+      # GN version: //ui/events
       'target_name': 'events',
       'type': '<(component)',
       'dependencies': [
@@ -92,6 +97,7 @@
         'EVENTS_IMPLEMENTATION',
       ],
       'sources': [
+        # Note: sources list duplicated in GN build.
         'cocoa/cocoa_event_utils.h',
         'cocoa/cocoa_event_utils.mm',
         'cocoa/events_mac.mm',
@@ -177,6 +183,7 @@
       ],
     },
     {
+      # GN version: //ui/events:gesture_detection
       'target_name': 'gesture_detection',
       'type': '<(component)',
       'dependencies': [
@@ -190,6 +197,7 @@
         'GESTURE_DETECTION_IMPLEMENTATION',
       ],
       'sources': [
+        # Note: sources list duplicated in GN build.
         'gesture_detection/bitset_32.h',
         'gesture_detection/filtered_gesture_provider.cc',
         'gesture_detection/filtered_gesture_provider.h',
@@ -226,6 +234,7 @@
       ],
     },
     {
+      # GN version: //ui/events:test_support
       'target_name': 'events_test_support',
       'type': 'static_library',
       'dependencies': [
@@ -235,6 +244,7 @@
         'platform/events_platform.gyp:events_platform',
       ],
       'sources': [
+        # Note: sources list duplicated in GN build.
         'test/cocoa_test_event_utils.h',
         'test/cocoa_test_event_utils.mm',
         'test/event_generator.cc',
@@ -275,6 +285,7 @@
       ],
     },
     {
+      # GN vesrion: //ui/events:events_unittests
       'target_name': 'events_unittests',
       'type': '<(gtest_target_type)',
       'dependencies': [
@@ -294,6 +305,7 @@
         'platform/events_platform.gyp:events_platform',
       ],
       'sources': [
+        # Note: sources list duplicated in GN build.
         'cocoa/events_mac_unittest.mm',
         'event_dispatcher_unittest.cc',
         'event_processor_unittest.cc',