AppModalDialogQueue shouldn't depend on views.

chrome/browser/app_modal_dialog_queue_unittest.cc

+// Copyright (c) 2009 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 "base/basictypes.h"
+#include "chrome/browser/app_modal_dialog_delegate.h"
+#include "chrome/browser/app_modal_dialog_queue.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+class TestModalDialogDelegate : public AppModalDialogDelegate {
+ public:
+  TestModalDialogDelegate() {}
+  virtual ~TestModalDialogDelegate() {}
+
+  // Overridden from AppModalDialogDelegate:
+  virtual void ShowModalDialog() {}
+  virtual void ActivateModalDialog() {}
+  virtual AppModalDialogDelegateTesting* GetTestingInterface() { return NULL; }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(TestModalDialogDelegate);
+};
+
+}  // namespace
+
+TEST(AppModalDialogQueueTest, MultipleDialogTest) {
+  TestModalDialogDelegate modal_dialog1, modal_dialog2;
+  AppModalDialogQueue::AddDialog(&modal_dialog1);
+  AppModalDialogQueue::AddDialog(&modal_dialog2);
+
+  EXPECT_TRUE(AppModalDialogQueue::HasActiveDialog());
+  EXPECT_EQ(&modal_dialog1, AppModalDialogQueue::active_dialog());
+
+  AppModalDialogQueue::ShowNextDialog();
+
+  EXPECT_TRUE(AppModalDialogQueue::HasActiveDialog());
+  EXPECT_EQ(&modal_dialog2, AppModalDialogQueue::active_dialog());
+
+  AppModalDialogQueue::ShowNextDialog();
+
+  EXPECT_FALSE(AppModalDialogQueue::HasActiveDialog());
+  EXPECT_EQ(NULL, AppModalDialogQueue::active_dialog());
+}