Fix RenderBlock::percentHeightDescendants()

Source/web/tests/WebFrameTest.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 5225 matching lines @@
     FrameTestHelpers::WebViewHelper webViewHelper;
     webViewHelper.initializeAndLoad("about:blank");
 
     WebCore::FrameView* frameView = webViewHelper.webViewImpl()->mainFrameImpl()->frameView();
     frameView->setFrameRect(WebCore::IntRect(0, 0, 200, 200));
     EXPECT_EQ_RECT(WebCore::IntRect(0, 0, 200, 200), frameView->frameRect());
     frameView->setFrameRect(WebCore::IntRect(100, 100, 200, 200));
     EXPECT_EQ_RECT(WebCore::IntRect(100, 100, 200, 200), frameView->frameRect());
 }
 
+TEST_F(WebFrameTest, RenderBlockPercentHeightDescendants)
+{
+    registerMockedHttpURLLoad("percent-height-descendants.html");
+    FrameTestHelpers::WebViewHelper webViewHelper;
+    webViewHelper.initializeAndLoad(m_baseURL + "percent-height-descendants.html");
+
+    WebView* webView = webViewHelper.webView();
+    webView->resize(WebSize(800, 800));
+    webView->layout();
+
+    Document* document = toWebFrameImpl(webView->mainFrame())->frame()->document();
+    WebCore::RenderBlock* container = WebCore::toRenderBlock(document->getElementById("container")->renderer());
+    WebCore::RenderBox* percentHeightInAnonymous = WebCore::toRenderBox(document->getElementById("percent-height-in-anonymous")->renderer());
+    WebCore::RenderBox* percentHeightDirectChild = WebCore::toRenderBox(document->getElementById("percent-height-direct-child")->renderer());
+
+    EXPECT_TRUE(WebCore::RenderBlock::hasPercentHeightDescendant(percentHeightInAnonymous));
+    EXPECT_TRUE(WebCore::RenderBlock::hasPercentHeightDescendant(percentHeightDirectChild));
+
+    ASSERT_TRUE(container->percentHeightDescendants());
+    ASSERT_TRUE(container->hasPercentHeightDescendants());
+    EXPECT_EQ(2U, container->percentHeightDescendants()->size());
+    EXPECT_TRUE(container->percentHeightDescendants()->contains(percentHeightInAnonymous));
+    EXPECT_TRUE(container->percentHeightDescendants()->contains(percentHeightDirectChild));
+
+    WebCore::RenderBlock* anonymousBlock = percentHeightInAnonymous->containingBlock();
+    EXPECT_TRUE(anonymousBlock->isAnonymous());
+    EXPECT_FALSE(anonymousBlock->hasPercentHeightDescendants());
+}
+
 } // namespace