Modify the sharing flow to first show a list of applications.

Store preferred account as a sharing setting.
Remove share url only option. Apply share url only if twitter is selected.

MyTracksTest/src/com/google/android/apps/mytracks/io/maps/SendMapsActivityTest.java

@@ -35,7 +35,7 @@ public class SendMapsActivityTest extends AndroidTestCase {
   @Override
   protected void setUp() throws Exception {
     super.setUp();
-    sendRequest = new SendRequest(1L, true, false, true);
+    sendRequest = new SendRequest(1L);
     sendMapsActivity = new SendMapsActivity();
   }
 

MyTracksTest/src/com/google/android/apps/mytracks/io/maps/SendMapsAsyncTaskTest.java

@@ -86,7 +86,7 @@ public class SendMapsAsyncTaskTest extends AndroidTestCase {
     prepareAndUploadPointsCounter = 0;
     sendMapsActivityMock = AndroidMock.createMock(SendMapsActivity.class);
     myTracksProviderUtilsMock = AndroidMock.createMock(MyTracksProviderUtils.class);
-    sendRequest = new SendRequest(TRACK_ID, false, true, false);
+    sendRequest = new SendRequest(TRACK_ID);
     AndroidMock.expect(sendMapsActivityMock.getApplicationContext()).andReturn(getContext());
   }