GitLab

Fix the method GetSelectedTab of the class NativeTabbedPaneView to return the tab contents of the currently selected tab.
Change the unittest to cover the NativeTabbedPaneViews and the NativeTabbedPaneWin.


BUG=139159
TEST=ui\views\control\tabbed_pane\tabbe_pane_view_unittest.cc

Review URL: https://chromiumcodereview.appspot.com/10831009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@149158 0039d316-1c4b-4281-b951-d872f2087c98