Fix the policy-pushed-certs omnibox icon.

Screenshot on the bug.

BUG=276956

Review URL: https://codereview.chromium.org/128033004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243608 0039d316-1c4b-4281-b951-d872f2087c98

chrome/app/theme/theme_resources.grd

@@ -546,7 +546,7 @@
       <structure type="chrome_scaled_image" name="IDR_OMNIBOX_EXTENSION_APP_SELECTED" file="common/omnibox_extension_app_selected.png" />
       <structure type="chrome_scaled_image" name="IDR_OMNIBOX_HTTP" file="common/omnibox_http.png" />
       <structure type="chrome_scaled_image" name="IDR_OMNIBOX_HTTPS_INVALID" file="common/omnibox_https_invalid.png" />
-      <structure type="chrome_scaled_image" name="IDR_OMNIBOX_HTTPS_POLICY_WARNING" file="common/omnibox_https_policy_warning.png" />
+      <structure type="chrome_scaled_image" name="IDR_OMNIBOX_HTTPS_POLICY_WARNING" file="common/controlled_setting_mandatory.png" />
       <structure type="chrome_scaled_image" name="IDR_OMNIBOX_HTTPS_VALID" file="common/omnibox_https_valid.png" />
       <structure type="chrome_scaled_image" name="IDR_OMNIBOX_HTTPS_WARNING" file="common/omnibox_https_warning.png" />
       <structure type="chrome_scaled_image" name="IDR_OMNIBOX_HTTP_DARK" file="common/omnibox_http_dark.png" />