Move rendering/RenderObject to layout/LayoutObject.

Source/core/rendering/RenderPartTest.cpp

Index: Source/core/rendering/RenderPartTest.cpp
diff --git a/Source/core/rendering/RenderPartTest.cpp b/Source/core/rendering/RenderPartTest.cpp
index 957acfa833edb0942a17781e3b652ac124949468..31d3344e62cc62b591356d0bacc704f0e5078fa3 100644
--- a/Source/core/rendering/RenderPartTest.cpp
+++ b/Source/core/rendering/RenderPartTest.cpp
@@ -18,7 +18,7 @@ class RenderPartTest : public RenderingTest {
 TEST_F(RenderPartTest, DestroyUpdatesImageQualityController)
 {
     RefPtrWillBeRawPtr<Element> element = HTMLElement::create(HTMLNames::divTag, document());
-    RenderObject* part = new RenderPart(element.get());
+    LayoutObject* part = new RenderPart(element.get());
     // The third and forth arguments are not important in this test.
     ImageQualityController::imageQualityController()->set(part, 0, this, LayoutSize(1, 1));
     EXPECT_TRUE(ImageQualityController::has(part));