[Cleanup] Add missing #include. Remove useless ones.

This CL is the result of running include-what-you-use tool on part
of the code base (audio target and dependencies) plus manual fixes.

bug: webrtc:8311
Change-Id: I277d281ce943c3ecc1bd45fd8d83055931743604
Reviewed-on: https://webrtc-review.googlesource.com/c/106280
Commit-Queue: Yves Gerey <yvesg@google.com>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25311}
diff --git a/modules/audio_device/dummy/audio_device_dummy.h b/modules/audio_device/dummy/audio_device_dummy.h
index d709f77..2a25410 100644
--- a/modules/audio_device/dummy/audio_device_dummy.h
+++ b/modules/audio_device/dummy/audio_device_dummy.h
@@ -11,9 +11,12 @@
 #ifndef AUDIO_DEVICE_AUDIO_DEVICE_DUMMY_H_
 #define AUDIO_DEVICE_AUDIO_DEVICE_DUMMY_H_
 
-#include <stdio.h>
+#include <stdint.h>
 
+#include "modules/audio_device/audio_device_buffer.h"
 #include "modules/audio_device/audio_device_generic.h"
+#include "modules/audio_device/include/audio_device.h"
+#include "modules/audio_device/include/audio_device_defines.h"
 
 namespace webrtc {
 
diff --git a/modules/audio_device/dummy/file_audio_device.cc b/modules/audio_device/dummy/file_audio_device.cc
index b9aeaa1..2848eea 100644
--- a/modules/audio_device/dummy/file_audio_device.cc
+++ b/modules/audio_device/dummy/file_audio_device.cc
@@ -9,9 +9,13 @@
  */
 
 #include "modules/audio_device/dummy/file_audio_device.h"
+
+#include <string.h>
+
 #include "rtc_base/checks.h"
 #include "rtc_base/logging.h"
 #include "rtc_base/platform_thread.h"
+#include "rtc_base/timeutils.h"
 #include "system_wrappers/include/sleep.h"
 
 namespace webrtc {
diff --git a/modules/audio_device/dummy/file_audio_device_factory.cc b/modules/audio_device/dummy/file_audio_device_factory.cc
index 6b38d8b..027b13b 100644
--- a/modules/audio_device/dummy/file_audio_device_factory.cc
+++ b/modules/audio_device/dummy/file_audio_device_factory.cc
@@ -10,8 +10,8 @@
 
 #include "modules/audio_device/dummy/file_audio_device_factory.h"
 
+#include <stdio.h>
 #include <cstdlib>
-#include <cstring>
 
 #include "modules/audio_device/dummy/file_audio_device.h"
 #include "rtc_base/logging.h"
diff --git a/modules/audio_device/dummy/file_audio_device_factory.h b/modules/audio_device/dummy/file_audio_device_factory.h
index 9cd5b3d..72f4ab2 100644
--- a/modules/audio_device/dummy/file_audio_device_factory.h
+++ b/modules/audio_device/dummy/file_audio_device_factory.h
@@ -11,7 +11,7 @@
 #ifndef AUDIO_DEVICE_FILE_AUDIO_DEVICE_FACTORY_H_
 #define AUDIO_DEVICE_FILE_AUDIO_DEVICE_FACTORY_H_
 
-#include "common_types.h"  // NOLINT(build/include)
+#include <stdint.h>
 
 namespace webrtc {