Add spang to pixmap & GMB owners

Change-Id: I42a856d35b0fcee1b6340cebd766a3149d0d85db

Reviewed-on: https://chromium-review.googlesource.com/c/1283475Reviewed-by: Robert Kroeger <rjkroege@chromium.org>
Reviewed-by: Sadrul Chowdhury <sadrul@chromium.org>
Commit-Queue: Sadrul Chowdhury <sadrul@chromium.org>
Cr-Commit-Position: refs/heads/master@{#600118}

ui/gfx/OWNERS

@@ -28,16 +28,21 @@ per-file skia_paint_util*=danakj@chromium.org
 per-file gpu_fence*=reveman@chromium.org
 per-file gpu_fence*=dcastagna@chromium.org
 per-file gpu_fence*=rjkroege@chromium.org
+per-file gpu_fence*=spang@chromium.org
 per-file gpu_memory_buffer*=reveman@chromium.org
 per-file gpu_memory_buffer*=dcastagna@chromium.org
 per-file gpu_memory_buffer*=rjkroege@chromium.org
+per-file gpu_memory_buffer*=spang@chromium.org
 per-file buffer_format*=reveman@chromium.org
 per-file buffer_format*=dcastagna@chromium.org
 per-file buffer_format*=rjkroege@chromium.org
+per-file buffer_format*=spang@chromium.org
 per-file *buffer_types.*=reveman@chromium.org
 per-file *buffer_types.*=dcastagna@chromium.org
 per-file *buffer_types.*=rjkroege@chromium.org
+per-file *buffer_types.*=spang@chromium.org
 per-file *pixmap.*=rjkroege@chromium.org
+per-file *pixmap.*=spang@chromium.org
 
 # Vector icons.
 per-file *vector_icon*=estade@chromium.org

ui/gfx/linux/OWNERS

@@ -3,3 +3,4 @@ dongseong.hwang@chromium.org
 dnicoara@chromium.org
 reveman@chromium.org
 rjkroege@chromium.org
+spang@chromium.org