Make IDR_PROFILE_PICTURE_LOADING available on platforms where enable_app_list is turned on.

BUG=333194

Review URL: https://codereview.chromium.org/455013002

Cr-Commit-Position: refs/heads/master@{#288483}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@288483 0039d316-1c4b-4281-b951-d872f2087c98

chrome/app/theme/theme_resources.grd

@@ -840,8 +840,10 @@
         <structure type="chrome_scaled_image" name="IDR_AVATAR_THEMED_MAC_BUTTON_NORMAL_TOP_RIGHT" file="mac/avatar_button/sign_in_button_themed_top_right.png" />
       </if>
 
+      <if expr="enable_app_list">
+        <structure type="chrome_scaled_image" name="IDR_PROFILE_PICTURE_LOADING" file="profile_loading.png" />
+      </if>
       <if expr="chromeos">
-        <structure type="chrome_scaled_image" name="IDR_PROFILE_PICTURE_LOADING" file="cros/profile_loading.png" />
         <structure type="chrome_scaled_image" name="IDR_RESET_WARNING" file="reset_warning.png" />
       </if>
       <structure type="chrome_scaled_image" name="IDR_QUESTION_MARK" file="common/question_mark.png" />