chromeos: Remove AshTestBase::SupportsMultipleDisplays

ash/magnifier/magnification_controller_unittest.cc

 // Copyright (c) 2013 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 "ash/magnifier/magnification_controller.h"
 
 #include "ash/common/accessibility_types.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "base/strings/stringprintf.h"
@@ skipping 655 matching lines @@
   // contained in the view port and the caret is at the center of the view port.
   gfx::Rect new_view_port = GetViewport();
   EXPECT_NE(view_port, new_view_port);
   EXPECT_TRUE(new_view_port.Contains(text_input_bounds));
   gfx::Rect caret_bounds = GetCaretBounds();
   EXPECT_EQ(caret_bounds.CenterPoint(), new_view_port.CenterPoint());
 }
 
 // Make sure that unified desktop can enter magnified mode.
 TEST_F(MagnificationControllerTest, EnableMagnifierInUnifiedDesktop) {
-  if (!SupportsMultipleDisplays())
-    return;
   Shell::GetInstance()->display_manager()->SetUnifiedDesktopEnabled(true);
 
   EXPECT_EQ(1.0f, GetMagnificationController()->GetScale());
 
   GetMagnificationController()->SetEnabled(true);
 
   display::Screen* screen = display::Screen::GetScreen();
 
   UpdateDisplay("500x500, 500x500");
   EXPECT_EQ("0,0 1000x500", screen->GetPrimaryDisplay().bounds().ToString());
   EXPECT_EQ(2.0f, GetMagnificationController()->GetScale());
 
   GetMagnificationController()->SetEnabled(false);
 
   EXPECT_EQ(1.0f, GetMagnificationController()->GetScale());
 
   GetMagnificationController()->SetEnabled(true);
   EXPECT_EQ(2.0f, GetMagnificationController()->GetScale());
 
   UpdateDisplay("500x500");
   EXPECT_EQ("0,0 500x500", screen->GetPrimaryDisplay().bounds().ToString());
   EXPECT_EQ(2.0f, GetMagnificationController()->GetScale());
 
   GetMagnificationController()->SetEnabled(false);
   EXPECT_EQ("0,0 500x500", screen->GetPrimaryDisplay().bounds().ToString());
   EXPECT_EQ(1.0f, GetMagnificationController()->GetScale());
 }
 
 }  // namespace ash