Don't include LayoutObject.h from FrameView.h

third_party/WebKit/Source/core/frame/LocalFrameTest.cpp

 // Copyright 2016 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 "core/frame/LocalFrame.h"
 
 #include "core/frame/FrameView.h"
 #include "core/html/HTMLElement.h"
+#include "core/layout/LayoutObject.h"
 #include "core/testing/DummyPageHolder.h"
 #include "platform/DragImage.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace blink {
 
 class LocalFrameTest : public ::testing::Test {
 protected:
     LocalFrameTest() = default;
     ~LocalFrameTest() override = default;
@@ skipping 97 matching lines @@
 
     // Layout w/o :-webkit-drag
     updateAllLifecyclePhases();
 
     EXPECT_EQ(Color(0, 0, 255),
         sample->layoutObject()->resolveColor(CSSPropertyColor))
         << "#sample doesn't have :-webkit-drag.";
 }
 
 } // namespace blink