Do not use assets for Ash window control button backgrounds

ash/frame/caption_buttons/frame_caption_button_container_view_unittest.cc

 // Copyright 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/frame/caption_buttons/frame_caption_button_container_view.h"
 
 #include "ash/frame/caption_buttons/frame_caption_button.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/wm/maximize_mode/maximize_mode_controller.h"
@@ skipping 51 matching lines @@
     views::Widget::InitParams params;
     params.delegate = new TestWidgetDelegate(
         maximize_allowed == MAXIMIZE_ALLOWED,
         minimize_allowed == MINIMIZE_ALLOWED);
     params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
     params.context = CurrentContext();
     widget->Init(params);
     return widget;
   }
 
-  // Sets |container| to use arbitrary images for the buttons. Setting the
-  // images causes the buttons to have non-empty sizes.
-  void SetMockImages(FrameCaptionButtonContainerView* container) {
+  // Sets arbitrary images for the icons and assign a non-empty size
+  // for the buttons in |container|.
+  void InitContainer(FrameCaptionButtonContainerView* container) {
+    container->SetButtonSize(gfx::Size(32, 33));
     for (int icon = 0; icon < CAPTION_BUTTON_ICON_COUNT; ++icon) {
-      container->SetButtonImages(
-          static_cast<CaptionButtonIcon>(icon),
-          IDR_AURA_WINDOW_CONTROL_ICON_CLOSE,
-          IDR_AURA_WINDOW_CONTROL_BACKGROUND_H,
-          IDR_AURA_WINDOW_CONTROL_BACKGROUND_P);
+      container->SetButtonImage(static_cast<CaptionButtonIcon>(icon),
+                                IDR_AURA_WINDOW_CONTROL_ICON_CLOSE);
     }
   }
 
   // Tests that |leftmost| and |rightmost| are at |container|'s edges.
   bool CheckButtonsAtEdges(FrameCaptionButtonContainerView* container,
                            const ash::FrameCaptionButton& leftmost,
                            const ash::FrameCaptionButton& rightmost) {
     gfx::Rect expected(container->GetPreferredSize());
 
     gfx::Rect container_size(container->GetPreferredSize());
@@ skipping 15 matching lines @@
  private:
   DISALLOW_COPY_AND_ASSIGN(FrameCaptionButtonContainerViewTest);
 };
 
 // Test how the allowed actions affect which caption buttons are visible.
 TEST_F(FrameCaptionButtonContainerViewTest, ButtonVisibility) {
   // All the buttons should be visible when minimizing and maximizing are
   // allowed.
   FrameCaptionButtonContainerView container1(
       CreateTestWidget(MAXIMIZE_ALLOWED, MINIMIZE_ALLOWED));
-  SetMockImages(&container1);
+  InitContainer(&container1);
   container1.Layout();
   FrameCaptionButtonContainerView::TestApi t1(&container1);
   EXPECT_TRUE(t1.minimize_button()->visible());
   EXPECT_TRUE(t1.size_button()->visible());
   EXPECT_TRUE(t1.close_button()->visible());
   EXPECT_TRUE(CheckButtonsAtEdges(
       &container1, *t1.minimize_button(), *t1.close_button()));
 
   // The minimize button should be visible when minimizing is allowed but
   // maximizing is disallowed.
   FrameCaptionButtonContainerView container2(
       CreateTestWidget(MAXIMIZE_DISALLOWED, MINIMIZE_ALLOWED));
-  SetMockImages(&container2);
+  InitContainer(&container2);
   container2.Layout();
   FrameCaptionButtonContainerView::TestApi t2(&container2);
   EXPECT_TRUE(t2.minimize_button()->visible());
   EXPECT_FALSE(t2.size_button()->visible());
   EXPECT_TRUE(t2.close_button()->visible());
   EXPECT_TRUE(CheckButtonsAtEdges(
       &container2, *t2.minimize_button(), *t2.close_button()));
 
   // Neither the minimize button nor the size button should be visible when
   // neither minimizing nor maximizing are allowed.
   FrameCaptionButtonContainerView container3(
       CreateTestWidget(MAXIMIZE_DISALLOWED, MINIMIZE_DISALLOWED));
-  SetMockImages(&container3);
+  InitContainer(&container3);
   container3.Layout();
   FrameCaptionButtonContainerView::TestApi t3(&container3);
   EXPECT_FALSE(t3.minimize_button()->visible());
   EXPECT_FALSE(t3.size_button()->visible());
   EXPECT_TRUE(t3.close_button()->visible());
   EXPECT_TRUE(CheckButtonsAtEdges(
       &container3, *t3.close_button(), *t3.close_button()));
 }
 
 // Tests that the layout animations trigered by button visibility result in the
 // correct placement of the buttons.
 TEST_F(FrameCaptionButtonContainerViewTest,
        TestUpdateSizeButtonVisibilityAnimation) {
   FrameCaptionButtonContainerView container(
       CreateTestWidget(MAXIMIZE_ALLOWED, MINIMIZE_ALLOWED));
-  SetMockImages(&container);
+  InitContainer(&container);
   container.SetBoundsRect(gfx::Rect(container.GetPreferredSize()));
   container.Layout();
 
   FrameCaptionButtonContainerView::TestApi test(&container);
   gfx::Rect initial_minimize_button_bounds = test.minimize_button()->bounds();
   gfx::Rect initial_size_button_bounds = test.size_button()->bounds();
   gfx::Rect initial_close_button_bounds = test.close_button()->bounds();
   gfx::Rect initial_container_bounds = container.bounds();
 
   ASSERT_EQ(initial_size_button_bounds.x(),
@@ skipping 33 matching lines @@
   EXPECT_TRUE(test.size_button()->visible());
   EXPECT_TRUE(test.close_button()->visible());
   EXPECT_EQ(initial_minimize_button_bounds, test.minimize_button()->bounds());
   EXPECT_EQ(initial_size_button_bounds, test.size_button()->bounds());
   EXPECT_EQ(initial_close_button_bounds, test.close_button()->bounds());
   EXPECT_EQ(container.GetPreferredSize().width(),
             initial_container_bounds.width());
 }
 
 }  // namespace ash