Plumb SetVisible from ui::Compositor to the DirectRenderer.

cc/output/renderer_unittest.cc

Index: cc/output/renderer_unittest.cc
diff --git a/cc/output/renderer_unittest.cc b/cc/output/renderer_unittest.cc
index 0a71c73807d110315a512764a33ee01f26feaf12..7a5db549487891ddb8f61fa359b5b7adf5031200 100644
--- a/cc/output/renderer_unittest.cc
+++ b/cc/output/renderer_unittest.cc
@@ -106,10 +106,12 @@ typedef ::testing::Types<DelegatingRenderer, GLRenderer> RendererTypes;
 TYPED_TEST_CASE(RendererTest, RendererTypes);
 
 TYPED_TEST(RendererTest, ContextPurgedWhenRendererBecomesInvisible) {
+  EXPECT_FALSE(this->renderer_->visible());
+  this->renderer_->SetVisible(true);
+  EXPECT_TRUE(this->renderer_->visible());
+
   EXPECT_CALL(*(this->context_provider_.get()), DeleteCachedResources())
       .Times(1);
-
-  EXPECT_TRUE(this->renderer_->visible());
   this->renderer_->SetVisible(false);
   EXPECT_FALSE(this->renderer_->visible());
 }