Move and rename RenderPart to LayoutPart.

Source/web/tests/WebFrameTest.cpp

Index: Source/web/tests/WebFrameTest.cpp
diff --git a/Source/web/tests/WebFrameTest.cpp b/Source/web/tests/WebFrameTest.cpp
index e245cef0c906ba9e2f04f1482b1561a31ff7b624..10f7ab0730c4990b04f9c1d84b56298d99e64d4f 100644
--- a/Source/web/tests/WebFrameTest.cpp
+++ b/Source/web/tests/WebFrameTest.cpp
@@ -6329,7 +6329,7 @@ TEST_F(WebFrameTest, FrameViewScrollAccountsForTopControls)
     webView->applyViewportDeltas(WebSize(0, 0), 1.0f, -30.0f / topControlsHeight);
     EXPECT_POINT_EQ(IntPoint(50, 55), frameView->maximumScrollPosition());
 
-    // Simulate a RenderPart::resize. The frame is resized to accomodate
+    // Simulate a LayoutPart::resize. The frame is resized to accomodate
     // the top controls and Blink's view of the top controls matches that of
     // the CC
     webView->setTopControlsHeight(40.0f, true);