Move have_wheel_event_handlers to WebLayerTreeView.

third_party/WebKit/Source/web/tests/ScrollingCoordinatorTest.cpp

Index: third_party/WebKit/Source/web/tests/ScrollingCoordinatorTest.cpp
diff --git a/third_party/WebKit/Source/web/tests/ScrollingCoordinatorTest.cpp b/third_party/WebKit/Source/web/tests/ScrollingCoordinatorTest.cpp
index 2e2c00d48ad697b27b0d0e73ec3d7e7430a3cde7..9d089c94996c3b65692ebc5d1966bed071822dd9 100644
--- a/third_party/WebKit/Source/web/tests/ScrollingCoordinatorTest.cpp
+++ b/third_party/WebKit/Source/web/tests/ScrollingCoordinatorTest.cpp
@@ -94,6 +94,8 @@ public:
     WebViewImpl* webViewImpl() const { return m_helper.webViewImpl(); }
     LocalFrame* frame() const { return m_helper.webViewImpl()->mainFrameImpl()->frame(); }
 
+    WebLayerTreeView* webLayerTreeView() const { return webViewImpl()->layerTreeView(); }
+
 protected:
     std::string m_baseURL;
     FrameTestHelpers::TestWebViewClient m_mockWebViewClient;
@@ -124,7 +126,7 @@ TEST_F(ScrollingCoordinatorTest, fastScrollingByDefault)
     WebLayer* rootScrollLayer = getRootScrollLayer();
     ASSERT_TRUE(rootScrollLayer->scrollable());
     ASSERT_FALSE(rootScrollLayer->shouldScrollOnMainThread());
-    ASSERT_FALSE(rootScrollLayer->haveWheelEventHandlers());
+    ASSERT_FALSE(webLayerTreeView()->haveWheelEventHandlers());
 }
 
 TEST_F(ScrollingCoordinatorTest, fastScrollingCanBeDisabledWithSetting)
@@ -310,8 +312,7 @@ TEST_F(ScrollingCoordinatorTest, wheelEventHandler)
     navigateTo(m_baseURL + "wheel-event-handler.html");
     forceFullCompositingUpdate();
 
-    WebLayer* rootScrollLayer = getRootScrollLayer();
-    ASSERT_TRUE(rootScrollLayer->haveWheelEventHandlers());
+    ASSERT_TRUE(webLayerTreeView()->haveWheelEventHandlers());
 }
 
 TEST_F(ScrollingCoordinatorTest, scrollEventHandler)