Bug 1365636 - Use args-provided profile in GeckoView example app. r=snorp

mobile/android/geckoview/src/main/java/org/mozilla/gecko/GeckoView.java

@@ -306,7 +306,7 @@ public class GeckoView extends LayerView {
 
     /**
      * Preload GeckoView by starting Gecko with the specified arguments in the background,
-     * if Geckois not already running.
+     * if Gecko is not already running.
      *
      * @param context Activity or Application Context for starting GeckoView.
      * @param geckoArgs Arguments to be passed to Gecko, if Gecko is not already running
@@ -317,7 +317,7 @@ public class GeckoView extends LayerView {
             GeckoAppShell.setApplicationContext(appContext);
         }
 
-        if (GeckoThread.initMainProcess(GeckoProfile.get(appContext),
+        if (GeckoThread.initMainProcess(GeckoProfile.initFromArgs(appContext, geckoArgs),
                                         geckoArgs,
                                         /* debugging */ false)) {
             GeckoThread.launch();

mobile/android/geckoview_example/src/main/java/org/mozilla/geckoview_example/GeckoViewActivity.java

@@ -10,6 +10,7 @@ import android.content.Intent;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.SystemClock;
+import android.text.TextUtils;
 import android.util.Log;
 import android.view.WindowManager;
 
@@ -31,11 +32,24 @@ public class GeckoViewActivity extends Activity {
         Log.i(LOGTAG, "zerdatime " + SystemClock.elapsedRealtime() +
               " - application start");
 
+        String geckoArgs = null;
+        final String intentArgs = getIntent().getStringExtra("args");
+
         if (BuildConfig.DEBUG) {
             // In debug builds, we want to load JavaScript resources fresh with each build.
-            GeckoView.preload(this, "-purgecaches");
+            geckoArgs = "-purgecaches";
         }
 
+        if (!TextUtils.isEmpty(intentArgs)) {
+            if (geckoArgs == null) {
+                geckoArgs = intentArgs;
+            } else {
+                geckoArgs += " " + intentArgs;
+            }
+        }
+
+        GeckoView.preload(this, geckoArgs);
+
         setContentView(R.layout.geckoview_activity);
 
         mGeckoView = (GeckoView) findViewById(R.id.gecko_view);