Remove unused variables, ash/ edition.

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/display/display_manager.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "base/strings/stringprintf.h"
@@ skipping 49 matching lines @@
 
 class MagnificationControllerTest: public test::AshTestBase {
  public:
   MagnificationControllerTest() : text_input_view_(NULL) {}
   ~MagnificationControllerTest() override {}
 
   void SetUp() override {
     AshTestBase::SetUp();
     UpdateDisplay(base::StringPrintf("%dx%d", kRootWidth, kRootHeight));
 
-    aura::Window* root = GetRootWindow();
-    gfx::Rect root_bounds(root->bounds());
-
 #if defined(OS_WIN)
     // RootWindow and Display can't resize on Windows Ash.
     // http://crbug.com/165962
+    aura::Window* root = GetRootWindow();
+    gfx::Rect root_bounds(root->bounds());
     EXPECT_EQ(kRootHeight, root_bounds.height());
     EXPECT_EQ(kRootWidth, root_bounds.width());
 #endif
 
     GetMagnificationController()->DisableMoveMagnifierDelayForTesting();
   }
 
   void TearDown() override { AshTestBase::TearDown(); }
 
  protected:
@@ skipping 625 matching lines @@
   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