Resolve LogSeverity macro/typedef conflict (browser/extensions)

LogSeverity is a typedef in base/logging.h and a macro
in the Windows header setupapi.h. When building using jumbo
this causes a conflict.

This commit solves the issue by undefining LogSeverity after importing
setupapi.h.

Bug: 850484,856964
Change-Id: I3e56c1a06357d8e03dbc98e01e51b18ae05e94dc
Reviewed-on: https://chromium-review.googlesource.com/1116790Reviewed-by: Ken Rockot <rockot@chromium.org>
Commit-Queue: Oscar Johansson <oscarj@opera.com>
Cr-Commit-Position: refs/heads/master@{#571436}

chrome/browser/extensions/api/image_writer_private/removable_storage_provider_win.cc

@@ -7,6 +7,10 @@
 
 #include <windows.h>
 #include <setupapi.h>
+
+// LogSeverity is both a macro in setupapi.h and a typedef in base/logging.h
+#undef LogSeverity
+
 #include <winioctl.h>
 
 #include <memory>