Revert "Add tab status to accessibility labels".

chrome/browser/ui/views/tabs/tab_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/views/tabs/tab.h"
 
 #include <stddef.h>
 
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 63 matching lines @@
     return paint_throbber_to_layer_;
   }
   bool IsImmersiveStyle() const override { return immersive_style_; }
   SkColor GetToolbarTopSeparatorColor() const override { return SK_ColorBLACK; }
   int GetBackgroundResourceId(bool* custom_image) const override {
     *custom_image = false;
     return IDR_THEME_TAB_BACKGROUND;
   }
   void UpdateTabAccessibilityState(const Tab* tab,
                                    ui::AXNodeData* node_data) override{};
-  base::string16 GetAccessibleTabName() const override {
-    return base::string16();
-  }
 
  private:
   ui::ListSelectionModel selection_model_;
   bool immersive_style_ = false;
   bool active_tab_ = false;
   bool paint_throbber_to_layer_ = true;
 
   DISALLOW_COPY_AND_ASSIGN(FakeTabController);
 };
 
@@ skipping 394 matching lines @@
 }
 
 TEST_F(TabTest, TitleHiddenWhenSmall) {
   FakeTabController tab_controller;
   Tab tab(&tab_controller, nullptr);
   tab.SetBounds(0, 0, 100, 50);
   EXPECT_GT(GetTitleWidth(tab), 0);
   tab.SetBounds(0, 0, 0, 50);
   EXPECT_EQ(0, GetTitleWidth(tab));
 }