Merge 113677 - [chromium] Viewport is not filled when out of texture memory on mac

Source/WebKit/chromium/src/WebLayerTreeView.cpp

Index: Source/WebKit/chromium/src/WebLayerTreeView.cpp
===================================================================
--- Source/WebKit/chromium/src/WebLayerTreeView.cpp	(revision 114754)
+++ Source/WebKit/chromium/src/WebLayerTreeView.cpp	(working copy)
@@ -97,6 +97,11 @@
     return WebSize(m_private->viewportSize());
 }
 
+void WebLayerTreeView::setBackgroundColor(WebColor color)
+{
+    m_private->setBackgroundColor(color);
+}
+
 void WebLayerTreeView::setVisible(bool visible)
 {
     m_private->setVisible(visible);