[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/utility/source/process_thread_impl.h b/modules/utility/source/process_thread_impl.h
index c1f6ed4..6f119d4 100644
--- a/modules/utility/source/process_thread_impl.h
+++ b/modules/utility/source/process_thread_impl.h
@@ -11,14 +11,17 @@
 #ifndef MODULES_UTILITY_SOURCE_PROCESS_THREAD_IMPL_H_
 #define MODULES_UTILITY_SOURCE_PROCESS_THREAD_IMPL_H_
 
+#include <stdint.h>
 #include <list>
 #include <memory>
 #include <queue>
 
+#include "modules/include/module.h"
 #include "modules/utility/include/process_thread.h"
 #include "rtc_base/criticalsection.h"
 #include "rtc_base/location.h"
 #include "rtc_base/platform_thread.h"
+#include "rtc_base/task_queue.h"
 #include "rtc_base/thread_checker.h"
 #include "system_wrappers/include/event_wrapper.h"