Implement important sites dialog for desktop.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 0af3e6333f24cd2eb516b07bd93bc3d90de57db6..e551b33ed9ec1a2778526a8c3cab1f57262c16b2 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -5618,14 +5618,12 @@ Keep your key file in a safe place. You will need it to create new versions of y
       <message name="IDS_FLAGS_PASSIVE_EVENT_LISTENER_DEFAULT_DESCRIPTION" desc="Description for the flag to adjust default behaviour for passive event listeners.">
         Forces touchstart, touchmove, mousewheel and wheel event listeners (which haven't requested otherwise) to be treated as passive. This will break touch/wheel behavior on some websites but is useful for demonstrating the potential performance benefits of adopting passive event listeners.
       </message>
-      <if expr="is_android">
-          <message name="IDS_FLAGS_IMPORTANT_SITES_IN_CBD_NAME" desc="Title for the flag for including important sites whitelisting in the clear browsing dialog.">
-              Important sites options in clear browsing data dialog
-          </message>
-          <message name="IDS_FLAGS_IMPORTANT_SITES_IN_CBD_DESCRIPTION" desc="Description for the flag for using important sites whitelisting in the clear browsing dialog.">
-              Include the option to whitelist important sites in the clear browsing data dialog.
-          </message>
-      </if>
+      <message name="IDS_FLAGS_IMPORTANT_SITES_IN_CBD_NAME" desc="Title for the flag for including important sites whitelisting in the clear browsing dialog.">
+          Important sites options in clear browsing data dialog
+      </message>
+      <message name="IDS_FLAGS_IMPORTANT_SITES_IN_CBD_DESCRIPTION" desc="Description for the flag for using important sites whitelisting in the clear browsing dialog.">
+          Include the option to whitelist important sites in the clear browsing data dialog.
+      </message>
       <if expr="use_ash">
         <message name="IDS_FLAGS_ASH_SHELF_COLOR" desc="Title of the flag which specifies the shelf coloring in Chrome OS system UI.">
           Shelf Color in Chrome OS system UI