[LayoutNG] Very simple layout() implementation

third_party/WebKit/Source/core/layout/ng/NGBlockLayoutAlgorithm.cpp

Index: third_party/WebKit/Source/core/layout/ng/NGBlockLayoutAlgorithm.cpp
diff --git a/third_party/WebKit/Source/core/layout/ng/NGBlockLayoutAlgorithm.cpp b/third_party/WebKit/Source/core/layout/ng/NGBlockLayoutAlgorithm.cpp
index 4844dafb04ba3eff67e68b0a7c5aacf7e4ac4777..ec2826902192d8bb142119cbfcdedc56cc1c0dc8 100644
--- a/third_party/WebKit/Source/core/layout/ng/NGBlockLayoutAlgorithm.cpp
+++ b/third_party/WebKit/Source/core/layout/ng/NGBlockLayoutAlgorithm.cpp
@@ -4,10 +4,27 @@
 
 #include "core/layout/ng/NGBlockLayoutAlgorithm.h"
 
+#include "core/layout/LayoutBox.h"
+#include "core/layout/ng/NGConstraintSpace.h"
+#include "core/layout/ng/NGFragment.h"
+#include "core/style/ComputedStyle.h"
+#include "platform/LengthFunctions.h"
+
 namespace blink {
 
-NGBlockLayoutAlgorithm::NGBlockLayoutAlgorithm()
+NGBlockLayoutAlgorithm::NGBlockLayoutAlgorithm(const ComputedStyle* style)
+    : m_style(style)
+{
+}
+
+NGFragment* NGBlockLayoutAlgorithm::layout(
+    const NGConstraintSpace& constraintSpace)
 {
+    LayoutUnit inlineSize = valueForLength(m_style->logicalWidth(),
+        constraintSpace.inlineContainerSize());
+    LayoutUnit blockSize = valueForLength(m_style->logicalHeight(),
+        constraintSpace.blockContainerSize());
+    return new NGFragment(inlineSize, blockSize, inlineSize, blockSize);
 }
 
 } // namespace blink