Use custom ListContainer to allocate DrawQuads

cc/trees/layer_tree_host_pixeltest_on_demand_raster.cc

Index: cc/trees/layer_tree_host_pixeltest_on_demand_raster.cc
diff --git a/cc/trees/layer_tree_host_pixeltest_on_demand_raster.cc b/cc/trees/layer_tree_host_pixeltest_on_demand_raster.cc
index 80f5d21216d6f9d9685ea11d50cc9468f98efe7f..64b8bc3c9013cbb1d104cf533a8dfa7e37e9c7d2 100644
--- a/cc/trees/layer_tree_host_pixeltest_on_demand_raster.cc
+++ b/cc/trees/layer_tree_host_pixeltest_on_demand_raster.cc
@@ -47,8 +47,10 @@ class LayerTreeHostOnDemandRasterPixelTest : public LayerTreePixelTest {
     AppendQuadsData data;
     picture_layer->AppendQuads(render_pass.get(), occlusion_tracker, &data);
 
-    for (size_t i = 0; i < render_pass->quad_list.size(); ++i)
-      EXPECT_EQ(render_pass->quad_list[i]->material, DrawQuad::PICTURE_CONTENT);
+    for (QuadList::Iterator iter = render_pass->quad_list.begin();
+         iter != render_pass->quad_list.end();
+         ++iter)
+      EXPECT_EQ(iter->material, DrawQuad::PICTURE_CONTENT);
 
     // Triggers pixel readback and ends the test.
     LayerTreePixelTest::SwapBuffersOnThread(host_impl, result);