Pinch/Zoom Infrastructure & Plumbing CL

content/test/web_layer_tree_view_impl_for_testing.cc

Index: content/test/web_layer_tree_view_impl_for_testing.cc
diff --git a/content/test/web_layer_tree_view_impl_for_testing.cc b/content/test/web_layer_tree_view_impl_for_testing.cc
index d29e68b802a5debab3797aba80121623736c23b3..3b0c967982b3252e3251ac6781db8a1629569bef 100644
--- a/content/test/web_layer_tree_view_impl_for_testing.cc
+++ b/content/test/web_layer_tree_view_impl_for_testing.cc
@@ -164,4 +164,25 @@ WebLayerTreeViewImplForTesting::OffscreenContextProvider() {
       OffscreenContextProviderForMainThread();
 }
 
+void WebLayerTreeViewImplForTesting::registerViewportLayers(
+    const blink::WebLayer* pageScaleLayer,
+    const blink::WebLayer* innerViewportScrollLayer,
+    const blink::WebLayer* outerViewportScrollLayer) {
+  layer_tree_host_->RegisterViewportLayers(
+      static_cast<const WebLayerImpl*>(pageScaleLayer)->layer(),
+      static_cast<const WebLayerImpl*>(innerViewportScrollLayer)
+          ->layer(),
+      // The outer viewport layer will only exist when using pinch virtual
+      // viewports.
+      outerViewportScrollLayer ? static_cast<const WebLayerImpl*>(
+                                     outerViewportScrollLayer)->layer()
+                               : NULL);
+}
+
+void WebLayerTreeViewImplForTesting::clearViewportLayers() {
+  layer_tree_host_->RegisterViewportLayers(scoped_refptr<cc::Layer>(),
+                                           scoped_refptr<cc::Layer>(),
+                                           scoped_refptr<cc::Layer>());
+}
+
 }  // namespace webkit