cc: Support texture rect targets for masks

cc/test/layer_tree_pixel_test.cc

Index: cc/test/layer_tree_pixel_test.cc
diff --git a/cc/test/layer_tree_pixel_test.cc b/cc/test/layer_tree_pixel_test.cc
index 31d30a4b676ffa627c501a922a00f0d735234818..91f8758a6ecdb25ee9f3b10db41204bb274663f9 100644
--- a/cc/test/layer_tree_pixel_test.cc
+++ b/cc/test/layer_tree_pixel_test.cc
@@ -35,6 +35,14 @@ LayerTreePixelTest::LayerTreePixelTest()
 
 LayerTreePixelTest::~LayerTreePixelTest() {}
 
+void LayerTreePixelTest::InitializeSettings(LayerTreeSettings* settings) {
+  if (settings->texture_target_prefs ==
+      LayerTreeSettings::FORCE_TEXTURE_RECT_TARGET) {
+    settings->use_zero_copy = true;
+    settings->impl_side_painting = true;
+  }
+}
+
 scoped_ptr<OutputSurface> LayerTreePixelTest::CreateOutputSurface(
     bool fallback) {
   gfx::Size surface_expansion_size(40, 60);