Fixes for -Wunused-function on Linux, Android and ChromeOS

ash/tooltips/tooltip_controller_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 "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "base/strings/utf_string_conversions.h"
 #include "ui/aura/client/tooltip_client.h"
 #include "ui/aura/env.h"
 #include "ui/aura/root_window.h"
@@ skipping 53 matching lines @@
   contents_view->SetBoundsRect(contents_view_bounds);
   widget->SetBounds(gfx::Rect(widget->GetWindowBoundsInScreen().origin(),
                               contents_view_bounds.size()));
 }
 
 TooltipController* GetController() {
   return static_cast<TooltipController*>(
       aura::client::GetTooltipClient(Shell::GetPrimaryRootWindow()));
 }
 
-gfx::Font GetDefaultFont() {
-  return ui::ResourceBundle::GetSharedInstance().GetFont(
-      ui::ResourceBundle::BaseFont);
-}
-
 }  // namespace
 
 class TooltipControllerTest : public AshTestBase {
  public:
   TooltipControllerTest() {}
   virtual ~TooltipControllerTest() {}
 
   virtual void SetUp() OVERRIDE {
     AshTestBase::SetUp();
     helper_.reset(new TooltipControllerTestHelper(GetController()));
@@ skipping 86 matching lines @@
   // be able to show tooltips on the primary display.
   aura::test::EventGenerator generator1(root_windows[0]);
   generator1.MoveMouseRelativeTo(widget1->GetNativeView(),
                                  view1->bounds().CenterPoint());
   helper_->FireTooltipTimer();
   EXPECT_TRUE(helper_->IsTooltipVisible());
 }
 
 }  // namespace test
 }  // namespace ash