[RootLayerScrolls] Fix frame scrolling layer in ScrollingCoordinator

third_party/WebKit/Source/web/tests/VisualViewportTest.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 "core/frame/VisualViewport.h"
 
 #include "core/dom/Document.h"
 #include "core/frame/BrowserControls.h"
 #include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
@@ skipping 1634 matching lines @@
 // Tests that the layout viewport's scroll layer bounds are updated in a
 // compositing change update. crbug.com/423188.
 TEST_P(VisualViewportTest, TestChangingContentSizeAffectsScrollBounds) {
   initializeWithAndroidSettings();
   webViewImpl()->resize(IntSize(100, 150));
 
   registerMockedHttpURLLoad("content-width-1000.html");
   navigateTo(m_baseURL + "content-width-1000.html");
 
   FrameView& frameView = *webViewImpl()->mainFrameImpl()->frameView();
-  WebLayer* scrollLayer = frameView.layerForScrolling()->platformLayer();
 
   webViewImpl()->mainFrame()->executeScript(
       WebScriptSource("var content = document.getElementById(\"content\");"
                       "content.style.width = \"1500px\";"
                       "content.style.height = \"2400px\";"));
   frameView.updateAllLifecyclePhases();
+  WebLayer* scrollLayer = frameView.layoutViewportScrollableArea()
+                              ->layerForScrolling()
+                              ->platformLayer();
 
   EXPECT_SIZE_EQ(IntSize(1500, 2400), IntSize(scrollLayer->bounds()));
 }
 
 // Tests that resizing the visual viepwort keeps its bounds within the outer
 // viewport.
 TEST_P(VisualViewportTest, ResizeVisualViewportStaysWithinOuterViewport) {
   initializeWithDesktopSettings();
   webViewImpl()->resize(IntSize(100, 200));
 
@@ skipping 799 matching lines @@
                                    "  body {"
                                    "    margin: 0px;"
                                    "  }"
                                    "  div { height:110vh; width: 110vw; }"
                                    "</style>"
                                    "<div></div>",
                                    baseURL);
 }
 
 }  // namespace