Delete root header file typedef.h.

Usage replaced with stdint.h, rtc_base/system/arch.h and
rtc_base/system/unused.h, as appropriate.

Bug: webrtc:6854
Change-Id: I97225465d14b969903d92979e2df3c3c05d35f18
Reviewed-on: https://webrtc-review.googlesource.com/90249
Reviewed-by: Niklas Enbom <niklas.enbom@webrtc.org>
Reviewed-by: Fredrik Solenberg <solenberg@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24100}

api/BUILD.gn

@@ -111,7 +111,6 @@ rtc_static_library("libjingle_peerconnection_api") {
     # Basically, don't add stuff here. You might break sensitive downstream
     # targets like pnacl. API should not depend on anything outside of this
     # file, really. All these should arguably go away in time.
-    "..:typedefs",
     "..:webrtc_common",
     "../logging:rtc_event_log_api",
     "../media:rtc_media_config",

api/audio/BUILD.gn

@@ -16,7 +16,6 @@ rtc_source_set("audio_frame_api") {
   ]
 
   deps = [
-    "../../:typedefs",
     "../../rtc_base:checks",
     "../../rtc_base:rtc_base_approved",
   ]

api/audio/audio_frame.h

@@ -12,9 +12,9 @@
 #define API_AUDIO_AUDIO_FRAME_H_
 
 #include <stddef.h>
+#include <stdint.h>
 
 #include "rtc_base/constructormagic.h"
-#include "typedefs.h"  // NOLINT(build/include)
 
 namespace webrtc {
 

api/audio_codecs/BUILD.gn

@@ -31,7 +31,6 @@ rtc_source_set("audio_codecs_api") {
   deps = [
     "..:array_view",
     "../..:webrtc_common",
-    "../../:typedefs",
     "../../rtc_base:checks",
     "../../rtc_base:deprecation",
     "../../rtc_base:rtc_base_approved",

api/audio_codecs/audio_decoder.h

@@ -18,7 +18,6 @@
 #include "api/array_view.h"
 #include "rtc_base/buffer.h"
 #include "rtc_base/constructormagic.h"
-#include "typedefs.h"  // NOLINT(build/include)
 
 namespace webrtc {
 

api/audio_codecs/audio_encoder.h

@@ -20,7 +20,6 @@
 #include "api/array_view.h"
 #include "rtc_base/buffer.h"
 #include "rtc_base/deprecation.h"
-#include "typedefs.h"  // NOLINT(build/include)
 
 namespace webrtc {
 

api/rtp_headers.h

@@ -25,7 +25,6 @@
 #include "common_types.h"  // NOLINT(build/include)
 #include "rtc_base/checks.h"
 #include "rtc_base/deprecation.h"
-#include "typedefs.h"  // NOLINT(build/include)
 
 namespace webrtc {
 

api/video/BUILD.gn

@@ -84,7 +84,6 @@ rtc_source_set("video_bitrate_allocation") {
     "video_bitrate_allocation.h",
   ]
   deps = [
-    "../..:typedefs",
     "../../rtc_base:checks",
     "../../rtc_base:safe_conversions",
     "../../rtc_base:stringutils",

api/video/video_bitrate_allocation.h

@@ -16,7 +16,6 @@
 #include <vector>
 
 #include "absl/types/optional.h"
-#include "typedefs.h"  // NOLINT(build/include)
 
 namespace webrtc {