Adds the hotword off icon for app-list.

BUG=313904
R=xiyuan@chromium.org
TBR=oshima@chromium.org
TEST=none

Review URL: https://codereview.chromium.org/145353016

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247734 0039d316-1c4b-4281-b951-d872f2087c98

chrome/app/theme/theme_resources.grd

@@ -46,6 +46,7 @@
       </if>
       <if expr="pp_ifdef('enable_app_list')">
         <structure type="chrome_scaled_image" name="IDR_APP_LIST_TAB_OVERLAY" file="common/app_list_v1_overlay.png" />
+        <structure type="chrome_scaled_image" name="IDR_APP_LIST_MIC_HOTWORD_OFF" file="common/app_list_mic_hotword_off.png" />
       </if>
       <structure type="chrome_scaled_image" name="IDR_ASK_MEDIA" file="ask_media.png" />
       <if expr="pp_ifdef('toolkit_views')">