Use ShadowController instead of creating its own.

ui/wm/core/shadow_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 "ui/wm/core/shadow_controller.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 198 matching lines @@
   window2->SetBounds(gfx::Rect(11, 21, 301, 401));
   AddTransientChild(window1.get(), window2.get());
   aura::client::SetHideOnDeactivate(window2.get(), true);
   window2->Show();
   ActivateWindow(window2.get());
 
   // window1 is now inactive, but its shadow should still appear active.
   EXPECT_EQ(Shadow::STYLE_ACTIVE, shadow1->style());
 }
 
+TEST_F(ShadowControllerTest, AlwaysActive) {
+  ShadowController::TestApi api(shadow_controller());
+
+  scoped_ptr<aura::Window> window1(new aura::Window(NULL));
+  window1->SetType(ui::wm::WINDOW_TYPE_NORMAL);
+  window1->Init(aura::WINDOW_LAYER_TEXTURED);
+  ParentWindow(window1.get());
+  window1->SetBounds(gfx::Rect(10, 20, 300, 400));
+  SetShadowType(window1.get(), SHADOW_TYPE_RECTANGULAR_ALWAYS_ACTIVE);
+  window1->Show();
+
+  // Showing the window with SHADOW_TYPE_RECTANGULAR_ALWAYS_ACTIVE should
+  // have active shadow.
+  EXPECT_EQ(Shadow::STYLE_ACTIVE,
+            api.GetShadowForWindow(window1.get())->style());
+
+  scoped_ptr<aura::Window> window2(new aura::Window(NULL));
+  window2->SetType(ui::wm::WINDOW_TYPE_NORMAL);
+  window2->Init(aura::WINDOW_LAYER_TEXTURED);
+  ParentWindow(window2.get());
+  window2->SetBounds(gfx::Rect(11, 21, 301, 401));
+  window2->Show();
+
+  // Setting SHADOW_TYPE_RECTANGULAR_ALWAYS_ACTIVE to the visible window
+  // should set the active shadow.
+  EXPECT_EQ(Shadow::STYLE_INACTIVE,
+            api.GetShadowForWindow(window2.get())->style());
+  SetShadowType(window2.get(), SHADOW_TYPE_RECTANGULAR_ALWAYS_ACTIVE);
+  EXPECT_EQ(Shadow::STYLE_ACTIVE,
+            api.GetShadowForWindow(window2.get())->style());
+
+  // Activation should not change the shadow style.
+  ActivateWindow(window2.get());
+  EXPECT_EQ(Shadow::STYLE_ACTIVE,
+            api.GetShadowForWindow(window1.get())->style());
+  EXPECT_EQ(Shadow::STYLE_ACTIVE,
+            api.GetShadowForWindow(window2.get())->style());
+
+  ActivateWindow(window1.get());
+  EXPECT_EQ(Shadow::STYLE_ACTIVE,
+            api.GetShadowForWindow(window1.get())->style());
+  EXPECT_EQ(Shadow::STYLE_ACTIVE,
+            api.GetShadowForWindow(window2.get())->style());
+
+  // Restore the style to plain RECTANGULAR and make sure the inactive window
+  // gets the inactive shadow.
+  SetShadowType(window1.get(), SHADOW_TYPE_RECTANGULAR);
+  SetShadowType(window2.get(), SHADOW_TYPE_RECTANGULAR);
+  EXPECT_EQ(Shadow::STYLE_ACTIVE,
+            api.GetShadowForWindow(window1.get())->style());
+  EXPECT_EQ(Shadow::STYLE_INACTIVE,
+            api.GetShadowForWindow(window2.get())->style());
+}
+
 }  // namespace wm