Add support for "browser:" protocol

- Prevent browser:incognito from regular tab

The browser will now allow "browser:" protocol
based urls and treat "chrome:" protocol based urls
as a search query

Change-Id: I23098f160f4bd4e5f3c4ec431364388cf4e38790
diff --git a/src/com/android/browser/Controller.java b/src/com/android/browser/Controller.java
index c546f48..54382d8 100644
--- a/src/com/android/browser/Controller.java
+++ b/src/com/android/browser/Controller.java
@@ -133,7 +133,7 @@
     private static final String LOGTAG = "Controller";
     private static final String SEND_APP_ID_EXTRA =
         "android.speech.extras.SEND_APPLICATION_ID_EXTRA";
-    private static final String INCOGNITO_URI = "chrome://incognito";
+    public static final String INCOGNITO_URI = "browser://incognito";
     public static final String EXTRA_REQUEST_CODE = "_fake_request_code_";
     public static final String EXTRA_RESULT_CODE = "_fake_result_code_";