Rewrite PPB_AudioInput_Dev to use the new-style host/resource.

ppapi/ppapi_shared.gypi

Index: ppapi/ppapi_shared.gypi
diff --git a/ppapi/ppapi_shared.gypi b/ppapi/ppapi_shared.gypi
index fffc465a253bdcad0551e5728d4c32f924408dc9..570c81984388094bbe5dd54b24d00884fcf7f51b 100644
--- a/ppapi/ppapi_shared.gypi
+++ b/ppapi/ppapi_shared.gypi
@@ -46,8 +46,6 @@
           'shared_impl/ppapi_switches.h',
           'shared_impl/ppb_audio_config_shared.cc',
           'shared_impl/ppb_audio_config_shared.h',
-          'shared_impl/ppb_audio_input_shared.cc',
-          'shared_impl/ppb_audio_input_shared.h',
           'shared_impl/ppb_audio_shared.cc',
           'shared_impl/ppb_audio_shared.h',
           'shared_impl/ppb_crypto_shared.cc',
@@ -135,7 +133,6 @@
           'thunk/ppb_audio_config_thunk.cc',
           'thunk/ppb_audio_input_api.h',
           'thunk/ppb_audio_input_thunk.cc',
-          'thunk/ppb_audio_input_trusted_thunk.cc',
           'thunk/ppb_audio_thunk.cc',
           'thunk/ppb_audio_trusted_thunk.cc',
           'thunk/ppb_broker_api.h',
@@ -254,14 +251,12 @@
           ['>(nacl_untrusted_build)==1 or >(nacl_win64_target)==1', {
             'sources!': [
               'shared_impl/flash_clipboard_format_registry.cc',
-              'shared_impl/ppb_audio_input_shared.cc',
               'shared_impl/ppb_url_util_shared.cc',
               'shared_impl/ppb_video_decoder_shared.cc',
               'shared_impl/ppb_video_capture_shared.cc',
               'shared_impl/private/ppb_browser_font_trusted_shared.cc',
               'shared_impl/private/ppb_char_set_shared.cc',
               'thunk/ppb_audio_input_thunk.cc',
-              'thunk/ppb_audio_input_trusted_thunk.cc',
               'thunk/ppb_audio_trusted_thunk.cc',
               'thunk/ppb_broker_thunk.cc',
               'thunk/ppb_browser_font_trusted_thunk.cc',