[Android] Update OWNERS information (base folders)

https://docs.google.com/document/d/1AhuftD0wlY1WfdatReo23d7ydx0KrQfJgrG2Jj_eNmI/

Bug: 1112872
Change-Id: Ice3a5a38c29f26251085109ad36c517762ba1533
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2346748Reviewed-by: Ted Choc <tedchoc@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Commit-Queue: Ted Choc <tedchoc@chromium.org>
Auto-Submit: Fred Mello <fredmello@chromium.org>
Cr-Commit-Position: refs/heads/master@{#798157}

base/android/OWNERS

@@ -8,3 +8,5 @@ yfriedman@chromium.org
 
 per-file *.aidl=set noparent
 per-file *.aidl=file://ipc/SECURITY_OWNERS
+
+# OS: Android
\ No newline at end of file

chrome/android/java/OWNERS

-per-file *.grd*=twellington@chromium.org

chrome/android/java/src/org/chromium/chrome/browser/OWNERS

-per-file ChromeApplication.java=agrieve@chromium.org
 per-file ShortcutHelper.java=dominickn@chromium.org

chrome/browser/android/OWNERS

 file://chrome/android/OWNERS
 
 per-file shortcut_*=dominickn@chromium.org
-
-# COMPONENT: UI>Browser>Mobile
-# OS: Android

content/browser/android/OWNERS

@@ -4,3 +4,4 @@ tedchoc@chromium.org
 yfriedman@chromium.org
 
 # COMPONENT: Content>WebApps
+# OS: Android