update: Add 'call to action'

* Add Call to Action for non-windows platforms.

Signed-off-by: mr.Shu <mr@shu.io>

js/background.js

@@ -69,6 +69,18 @@ function Background() {
         });
       }
     });
+
+    // Show search engine settings along with steps required to make DuckDuckGo
+    // the default for platforms where the override does not work.
+    if (os !== 'w') {
+      chrome.tabs.create({ url: 'chrome://settings/searchEngines' });
+      chrome.notifications.create({
+        type: "basic",
+        iconUrl: "./img/icon_128.png",
+        title: "One more step!",
+        message: "Click 'Make Default' next to DuckDuckGo in the list below."
+      });
+    }
   });
 
   chrome.extension.onMessage.addListener(function(request, sender, callback) {

manifest.json

@@ -1,6 +1,6 @@
 {
     "name": "DuckDuckGo for Chrome",
-    "version": "42.7.3",
+    "version": "42.7.4",
     "description": "DuckDuckGo enhancements for Chrome.",
     "icons": {
         "16": "img/icon_16.png",
@@ -51,6 +51,7 @@
         "contextMenus",
         "webRequest",
         "webRequestBlocking",
-        "*://*.duckduckgo.com/"
+        "*://*.duckduckgo.com/",
+        "notifications"
     ]
 }