Fix tab coloring bugs with multiple open profiles which used different colors.

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 49 matching lines @@
   bool EndDrag(EndDragReason reason) override { return false; }
   Tab* GetTabAt(Tab* tab, const gfx::Point& tab_in_tab_coordinates) override {
     return NULL;
   }
   void OnMouseEventInTab(views::View* source,
                          const ui::MouseEvent& event) override {}
   bool ShouldPaintTab(const Tab* tab, gfx::Rect* clip) override { return true; }
   bool CanPaintThrobberToLayer() const override {
     return paint_throbber_to_layer_;
   }
-  bool IsIncognito() const override { return false; }
   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::AXViewState* state) override{};
 
  private:
@@ skipping 404 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));
 }