Resolve CE/EE diffs in zero_authorized_projects

Part of single codebase changes.

app/helpers/dashboard_helper.rb

@@ -21,6 +21,10 @@ module DashboardHelper
     links.any? { |link| dashboard_nav_link?(link) }
   end
 
+  def has_start_trial?
+    false
+  end
+
   private
 
   def get_dashboard_nav_links

app/views/dashboard/projects/_zero_authorized_projects.html.haml

-.blank-state-parent-container
+.blank-state-parent-container{ class: ('has-start-trial-container' if has_start_trial?) }
   .section-container.section-welcome{ class: "#{ 'section-admin-welcome' if current_user.admin? }" }
     .container.section-body
       .row
@@ -7,7 +7,12 @@
             Welcome to GitLab
           %p.blank-state-text
             Code, test, and deploy together
+        .blank-state-row
+          %div{ class: ('column-large' if has_start_trial?) }
             - if current_user.admin?
               = render "blank_state_admin_welcome"
             - else
               = render "blank_state_welcome"
+          - if has_start_trial?
+            .column-small
+              = render_if_exists "blank_state_ee_trial"

spec/helpers/dashboard_helper_spec.rb

@@ -21,4 +21,10 @@ describe DashboardHelper do
       expect(helper.dashboard_nav_links).not_to include(:activity, :milestones)
     end
   end
+
+  describe '.has_start_trial?' do
+    subject { helper.has_start_trial? }
+
+    it { is_expected.to eq(false) }
+  end
 end