Run all LayerTreeHost tests with a delegating renderer.

cc/trees/layer_tree_host_unittest_scroll.cc

Index: cc/trees/layer_tree_host_unittest_scroll.cc
diff --git a/cc/trees/layer_tree_host_unittest_scroll.cc b/cc/trees/layer_tree_host_unittest_scroll.cc
index d433c424463e12fd7a226eb2a913d3a0c3f91c91..6be91eacae53cf2a4d12906b1e6e8150d04f3250 100644
--- a/cc/trees/layer_tree_host_unittest_scroll.cc
+++ b/cc/trees/layer_tree_host_unittest_scroll.cc
@@ -450,43 +450,88 @@ class LayerTreeHostScrollTestCaseWithChild
   scoped_refptr<Layer> expected_no_scroll_layer_;
 };
 
-TEST_F(LayerTreeHostScrollTestCaseWithChild, DeviceScaleFactor1_ScrollChild) {
+TEST_F(LayerTreeHostScrollTestCaseWithChild,
+       DeviceScaleFactor1_ScrollChild_DirectRenderer) {
   device_scale_factor_ = 1.f;
   scroll_child_layer_ = true;
-  RunTest(true);
+  RunTest(true, false);
 }
 
-TEST_F(LayerTreeHostScrollTestCaseWithChild, DeviceScaleFactor15_ScrollChild) {
+TEST_F(LayerTreeHostScrollTestCaseWithChild,
+       DeviceScaleFactor1_ScrollChild_DelegatingRenderer) {
+  device_scale_factor_ = 1.f;
+  scroll_child_layer_ = true;
+  RunTest(true, true);
+}
+
+TEST_F(LayerTreeHostScrollTestCaseWithChild,
+       DeviceScaleFactor15_ScrollChild_DirectRenderer) {
   device_scale_factor_ = 1.5f;
   scroll_child_layer_ = true;
-  RunTest(true);
+  RunTest(true, false);
 }
 
-TEST_F(LayerTreeHostScrollTestCaseWithChild, DeviceScaleFactor2_ScrollChild) {
+TEST_F(LayerTreeHostScrollTestCaseWithChild,
+       DeviceScaleFactor15_ScrollChild_DelegatingRenderer) {
+  device_scale_factor_ = 1.5f;
+  scroll_child_layer_ = true;
+  RunTest(true, true);
+}
+
+TEST_F(LayerTreeHostScrollTestCaseWithChild,
+       DeviceScaleFactor2_ScrollChild_DirectRenderer) {
   device_scale_factor_ = 2.f;
   scroll_child_layer_ = true;
-  RunTest(true);
+  RunTest(true, false);
 }
 
 TEST_F(LayerTreeHostScrollTestCaseWithChild,
-       DeviceScaleFactor1_ScrollRootScrollLayer) {
+       DeviceScaleFactor2_ScrollChild_DelegatingRenderer) {
+  device_scale_factor_ = 2.f;
+  scroll_child_layer_ = true;
+  RunTest(true, true);
+}
+
+TEST_F(LayerTreeHostScrollTestCaseWithChild,
+       DeviceScaleFactor1_ScrollRootScrollLayer_DirectRenderer) {
+  device_scale_factor_ = 1.f;
+  scroll_child_layer_ = false;
+  RunTest(true, false);
+}
+
+TEST_F(LayerTreeHostScrollTestCaseWithChild,
+       DeviceScaleFactor1_ScrollRootScrollLayer_DelegatingRenderer) {
   device_scale_factor_ = 1.f;
   scroll_child_layer_ = false;
-  RunTest(true);
+  RunTest(true, true);
+}
+
+TEST_F(LayerTreeHostScrollTestCaseWithChild,
+       DeviceScaleFactor15_ScrollRootScrollLayer_DirectRenderer) {
+  device_scale_factor_ = 1.5f;
+  scroll_child_layer_ = false;
+  RunTest(true, false);
 }
 
 TEST_F(LayerTreeHostScrollTestCaseWithChild,
-       DeviceScaleFactor15_ScrollRootScrollLayer) {
+       DeviceScaleFactor15_ScrollRootScrollLayer_DelegatingRenderer) {
   device_scale_factor_ = 1.5f;
   scroll_child_layer_ = false;
-  RunTest(true);
+  RunTest(true, true);
+}
+
+TEST_F(LayerTreeHostScrollTestCaseWithChild,
+       DeviceScaleFactor2_ScrollRootScrollLayer_DirectRenderer) {
+  device_scale_factor_ = 2.f;
+  scroll_child_layer_ = false;
+  RunTest(true, false);
 }
 
 TEST_F(LayerTreeHostScrollTestCaseWithChild,
-       DeviceScaleFactor2_ScrollRootScrollLayer) {
+       DeviceScaleFactor2_ScrollRootScrollLayer_DelegatingRenderer) {
   device_scale_factor_ = 2.f;
   scroll_child_layer_ = false;
-  RunTest(true);
+  RunTest(true, true);
 }
 
 class ImplSidePaintingScrollTest : public LayerTreeHostScrollTest {