Make sure View classes in ash/system/ have specific class names.

Currently, some View subclasses do not override
getClassName(), so their class names will be "View" instead of something more specific like "AppListFolderView".
This branch overrides getClassName() for all View subclasses in the following directories:
ash/system/ime
ash/system/ime_menu
ash/system/message_center
ash/system/palette

Bug: 962561
Test: None
Change-Id: I6b966187cd5e93b9e768f963cb1d09737b5b87f5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1618313
Reviewed-by: Mitsuru Oshima <oshima@chromium.org>
Reviewed-by: Stefan Kuhne <skuhne@chromium.org>
Commit-Queue: MyungJae Lee <myungjaelee@chromium.org>
Cr-Commit-Position: refs/heads/master@{#661886}
15 files changed