Integrate UI with authentication flow.

blimp/client/public/android/java/src/org/chromium/blimp_public/BlimpClientContext.java

Index: blimp/client/public/android/java/src/org/chromium/blimp_public/BlimpClientContext.java
diff --git a/blimp/client/public/android/java/src/org/chromium/blimp_public/BlimpClientContext.java b/blimp/client/public/android/java/src/org/chromium/blimp_public/BlimpClientContext.java
index bf7f6c62c83029e812ebe047c11b23cfc01cac8d..bf3cc620f8165a21c450b8414ab5acc637a0c3dc 100644
--- a/blimp/client/public/android/java/src/org/chromium/blimp_public/BlimpClientContext.java
+++ b/blimp/client/public/android/java/src/org/chromium/blimp_public/BlimpClientContext.java
@@ -28,11 +28,16 @@ public interface BlimpClientContext {
     boolean isBlimpSupported();
 
     /**
+     * @return If Blimp is enabled in settings UI by the user. Or if we have development mode
+     * command line arguments.
+     */
+    boolean isBlimpEnabled();
+
+    /**
      * Attach blimp settings UI to a {@link PreferenceFragment}
      * @param fragment PreferenceFragment that blimp settings UI attached to.
-     * @param callback Chrome layer callbacks that passed to Blimp.
      */
-    void attachBlimpPreferences(PreferenceFragment fragment, BlimpSettingsCallbacks callback);
+    void attachBlimpPreferences(PreferenceFragment fragment);
 
     /**
      * Set the {@link BlimpClientContextDelegate}, functions in this interface should be used in