Add InputEvent and EventPacket types for batched input delivery

content/content_tests.gypi

Index: content/content_tests.gypi
diff --git a/content/content_tests.gypi b/content/content_tests.gypi
index 1074d3281ca2fa898a986dbe568f61536b349b8f..4b341ade7d65cf9a92da25d59ea2f1a48df8e343 100644
--- a/content/content_tests.gypi
+++ b/content/content_tests.gypi
@@ -336,7 +336,15 @@
         'browser/power_monitor_message_broadcaster_unittest.cc',
         'browser/renderer_host/compositing_iosurface_transformer_mac_unittest.cc',
         'browser/renderer_host/gtk_key_bindings_handler_unittest.cc',
+        'browser/renderer_host/input/mock_input_ack_handler.cc',
+        'browser/renderer_host/input/mock_input_ack_handler.h',
+        'browser/renderer_host/input/mock_input_router_client.cc',
+        'browser/renderer_host/input/mock_input_router_client.h',
+        'browser/renderer_host/input/buffered_input_router_unittest.cc',
         'browser/renderer_host/input/immediate_input_router_unittest.cc',
+        'browser/renderer_host/input/input_router_unittest.h',
+        'browser/renderer_host/input/input_router_unittest.cc',
+        'browser/renderer_host/input/input_queue_unittest.cc',
         'browser/renderer_host/media/audio_input_device_manager_unittest.cc',
         'browser/renderer_host/media/audio_mirroring_manager_unittest.cc',
         'browser/renderer_host/media/audio_renderer_host_unittest.cc',
@@ -404,6 +412,7 @@
         'common/dom_storage/dom_storage_map_unittest.cc',
         'common/gpu/gpu_memory_manager_unittest.cc',
         'common/indexed_db/indexed_db_key_unittest.cc',
+        'common/input/input_param_traits_unittest.cc',
         'common/inter_process_time_ticks_converter_unittest.cc',
         'common/mac/attributed_string_coder_unittest.mm',
         'common/mac/font_descriptor_unittest.mm',