client/wayland: Update Wayland input-method protocol to unstable v1

Weston uses unstable v1 for input-method protocol.
Unfortunately weston-terminal does not enable input method and tested
the protocol with weston-editor:
https://github.com/wayland-project/weston/blob/master/clients/editor.c

BUG=#2030

client/wayland/Makefile.am

@@ -3,7 +3,8 @@
 # ibus - The Input Bus
 #
 # Copyright (c) 2007-2013 Peng Huang <shawn.p.huang@gmail.com>
-# Copyright (c) 2007-2013 Red Hat, Inc.
+# Copyright (c) 2019 Takao Fujiwara <takao.fujiwara1@gmail.com>
+# Copyright (c) 2007-2019 Red Hat, Inc.
 #
 # This library is free software; you can redistribute it and/or modify
 # it under the terms of the GNU Lesser General Public License as
@@ -25,38 +26,40 @@ libibus = $(top_builddir)/src/libibus-@IBUS_API_VERSION@.la
 libexec_PROGRAMS = ibus-wayland
 
 protocol_sources = \
-	input-method-protocol.c \
-	input-method-client-protocol.h \
-	$(NULL)
+    input-method-unstable-v1-client-protocol.h \
+    input-method-unstable-v1-protocol.c \
+    $(NULL)
 
 ibus_wayland_SOURCES = \
-	$(protocol_sources) \
-	main.c \
-	$(NULL)
+    $(protocol_sources) \
+    main.c \
+    $(NULL)
 
 ibus_wayland_DEPENDENCIES = \
-	$(libibus) \
-	$(NULL)
+    $(libibus) \
+    $(NULL)
 
 ibus_wayland_LDADD = \
-	$(libibus) \
-	$(GIO2_LIBS) \
-	$(WAYLAND_LIBS) \
-	$(NULL)
+    $(libibus) \
+    $(GIO2_LIBS) \
+    $(WAYLAND_LIBS) \
+    $(NULL)
 
 ibus_wayland_CFLAGS = \
-	$(GIO2_CFLAGS) \
-	$(WAYLAND_CFLAGS) \
-	-I$(top_srcdir)/src \
-	-I$(top_builddir)/src \
-	$(NULL)
+    $(GIO2_CFLAGS) \
+    $(WAYLAND_CFLAGS) \
+    -I$(top_srcdir)/src \
+    -I$(top_builddir)/src \
+    $(NULL)
 
 $(libibus):
 	(cd $(top_builddir)/src; make)
 
 EXTRA_DIST = \
-	README \
-	$(protocol_sources) \
-	$(NULL)
+    README \
+    $(protocol_sources) \
+    $(NULL)
+
+@wayland_scanner_rules@
 
 -include $(top_srcdir)/git.mk