Move rendering/RenderObject to layout/LayoutObject.

Source/core/rendering/RenderBlockTest.cpp

 // Copyright 2014 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 "config.h"
 #include "core/rendering/RenderBlock.h"
 
 #include "core/rendering/RenderBlockFlow.h"
 #include "core/rendering/RenderingTestHelper.h"
 #include <gtest/gtest.h>
 
 namespace blink {
 
 class RenderBlockTest : public RenderingTest {
 };
 
 TEST_F(RenderBlockTest, RenderNameCalledWithNullStyle)
 {
-    RenderObject* obj = RenderBlockFlow::createAnonymous(&document());
+    LayoutObject* obj = RenderBlockFlow::createAnonymous(&document());
     EXPECT_FALSE(obj->style());
     EXPECT_STREQ("RenderBlock (generated)", obj->renderName());
     obj->destroy();
 }
 
 }