[Chromoting] Remote Assistance in Public Session.

remoting/webapp/crd/html/public_session.css

Index: remoting/webapp/crd/html/public_session.css
diff --git a/chrome/browser/resources/chromeos/login/gaia_header.css b/remoting/webapp/crd/html/public_session.css
similarity index 57%
copy from chrome/browser/resources/chromeos/login/gaia_header.css
copy to remoting/webapp/crd/html/public_session.css
index ccb7c1337b440c9a65c36c5db2556835eeae488c..0654c88c8e39c2e1b5f93f9a2fa86ca54d5c9e71 100644
--- a/chrome/browser/resources/chromeos/login/gaia_header.css
+++ b/remoting/webapp/crd/html/public_session.css
@@ -3,12 +3,12 @@
  * found in the LICENSE file.
  */
 
-:host {
-  display: flex;
-  flex-direction: column;
-  justify-content: space-between;
+.public-session section {
+  width: 510px;
 }
 
-#email {
-  font-size: 20px;
-}
+.public-session .kd-modaldialog {
+  border: none;
+  outline: none;
+  box-shadow: none;
+}