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 ef312d3d11f5a2c53e9410d14be60f36025603e3..29203f7ee8bcee5d9a23badee63da1891ff93b01 100644
--- a/ppapi/ppapi_shared.gypi
+++ b/ppapi/ppapi_shared.gypi
@@ -44,8 +44,6 @@
           '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',
@@ -133,7 +131,6 @@
           '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',
@@ -251,7 +248,6 @@
         'target_conditions': [
           ['>(nacl_untrusted_build)==1 or >(nacl_win64_target)==1', {
             'sources!': [
-              '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',
@@ -259,7 +255,6 @@
               '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',