Gradient overlay for constrained window

chrome/renderer/webview_animating_overlay_browsertest.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 "chrome/renderer/webview_animating_overlay.h"
+
+#include "chrome/test/base/chrome_render_view_test.h"
+#include "skia/ext/platform_canvas.h"
+#include "webkit/glue/webkit_glue.h"
+
+typedef ChromeRenderViewTest WebViewAnimatingOverlayTest;
+
+TEST_F(WebViewAnimatingOverlayTest, ShowHide) {
+  WebViewAnimatingOverlay overlay(view_);
+  EXPECT_EQ(overlay.state(), WebViewAnimatingOverlay::HIDDEN);
+  overlay.Show();
+  EXPECT_EQ(overlay.state(), WebViewAnimatingOverlay::ANIMATING_IN);
+  overlay.Hide();
+  EXPECT_EQ(overlay.state(), WebViewAnimatingOverlay::ANIMATING_OUT);
+}
+
+TEST_F(WebViewAnimatingOverlayTest, Paint) {
+  gfx::Size view_size(100, 100);
+  Resize(view_size, gfx::Rect(), false);
+
+  WebViewAnimatingOverlay overlay(view_);
+  overlay.Show();
+
+  skia::PlatformCanvas canvas;
+  ASSERT_TRUE(canvas.initialize(view_size.width(), view_size.height(), true));
+  overlay.paintPageOverlay(webkit_glue::ToWebCanvas(&canvas));
+}