Use Custome ListContainer to Allocate SharedQuadState

cc/layers/picture_layer_impl_unittest.cc

Index: cc/layers/picture_layer_impl_unittest.cc
diff --git a/cc/layers/picture_layer_impl_unittest.cc b/cc/layers/picture_layer_impl_unittest.cc
index c72d19c2943d245c346a10d1bb2326e55153053f..965d6026b7f7f753f3b9ca0950e7cd424a14b7ed 100644
--- a/cc/layers/picture_layer_impl_unittest.cc
+++ b/cc/layers/picture_layer_impl_unittest.cc
@@ -3464,17 +3464,18 @@ TEST_F(PictureLayerImplTest, SharedQuadStateContainsMaxTilingScale) {
   // The content_to_target_transform should be scaled by the
   // MaximumTilingContentsScale on the layer.
   EXPECT_EQ(scaled_draw_transform.ToString(),
-            render_pass->shared_quad_state_list[0]
+            render_pass->shared_quad_state_list.front()
                 ->content_to_target_transform.ToString());
   // The content_bounds should be scaled by the
   // MaximumTilingContentsScale on the layer.
-  EXPECT_EQ(gfx::Size(2500u, 5000u).ToString(),
-            render_pass->shared_quad_state_list[0]->content_bounds.ToString());
-  // The visible_content_rect should be scaled by the
-  // MaximumTilingContentsScale on the layer.
   EXPECT_EQ(
-      gfx::Rect(0u, 0u, 2500u, 5000u).ToString(),
-      render_pass->shared_quad_state_list[0]->visible_content_rect.ToString());
+      gfx::Size(2500u, 5000u).ToString(),
+      render_pass->shared_quad_state_list.front()->content_bounds.ToString());
+  // The visible_content_rect should be scaled by the
+  // MaximumTilingContentsScale on the layer.
+  EXPECT_EQ(gfx::Rect(0u, 0u, 2500u, 5000u).ToString(),
+            render_pass->shared_quad_state_list.front()
+                ->visible_content_rect.ToString());
 }
 
 TEST_F(PictureLayerImplTest, UpdateTilesForMasksWithNoVisibleContent) {