Steps to reproduce the problem:

1. Execute upload_revision.py 340925 && update.py, update third_party/llvm-build to clang 8.0.0 version
2. Refer to the https://chromium.googlesource.com/chromium/src/+/d54494cbad8d5ff0a8cd74024902c8bd86258ae4 chromium upgrade clang submission patch.
3. Execute gn gen --args='target_os="android"  is_clang = true is_asan = true is_debug = false is_component_build = false' out/Asan && ninja -C out/Asan chrome_public_apk
3、Compiled NDK-related compilation errors at this time
4、then Refer https://chromium-review.googlesource.com/c/chromium/src/+/777822 chromium upgrade NDK submission patch.
5、Execute gn gen --args='target_os="android"  is_clang = true is_asan = true is_debug = false is_component_build = false' out/Asan && ninja -C out/Asan chrome_public_apk
6、Compile Unknown clang plugin argument: check-auto-raw-pointer
In file included from ../../base/linux_util.cc:5:
../../base/linux_util.h:9:10: fatal error: 'sys/types.h' file not found
#include <sys/types.h>
         ^~~~~~~~~~~~~
1 error generated.
error

What is the expected behavior?
The clang 6.0.0 version of chromium 63 can be upgraded to 8.0.0 and can be compiled.

What went wrong?
Compile failed

Did this work before? N/A 

Chrome version: 69.0.3497.92  Channel: stable
OS Version: 9.0 (Windows 7, Windows Server 2008 R2)
Flash Version: 

Dears 
     Can anyone tell me if there is any related documentation for upgrading clang?
thanks