Merge 147178 "[Chromium] Don't create SolidColorLayer for full t..."

Source/WebKit/chromium/tests/GraphicsLayerChromiumTest.cpp

Index: Source/WebKit/chromium/tests/GraphicsLayerChromiumTest.cpp
===================================================================
--- Source/WebKit/chromium/tests/GraphicsLayerChromiumTest.cpp	(revision 147437)
+++ Source/WebKit/chromium/tests/GraphicsLayerChromiumTest.cpp	(working copy)
@@ -147,4 +147,16 @@
     EXPECT_EQ(scrollPosition, WebPoint(scrollableArea.scrollPosition()));
 }
 
+TEST_F(GraphicsLayerChromiumTest, setContentsToSolidColor)
+{
+    m_graphicsLayer->setContentsToSolidColor(Color::transparent);
+    EXPECT_FALSE(m_graphicsLayer->contentsLayer());
+
+    m_graphicsLayer->setContentsToSolidColor(Color::white);
+    EXPECT_TRUE(m_graphicsLayer->contentsLayer());
+
+    m_graphicsLayer->setContentsToSolidColor(Color());
+    EXPECT_FALSE(m_graphicsLayer->contentsLayer());
+}
+
 } // namespace