Removed QuadSink and MockQuadCuller

cc/trees/layer_tree_host_impl.cc

Index: cc/trees/layer_tree_host_impl.cc
diff --git a/cc/trees/layer_tree_host_impl.cc b/cc/trees/layer_tree_host_impl.cc
index 790613a28a3512b743057018ac49a67f2b5ddcbd..5248919ea238a662faa41d94d8836d7849e7f4f1 100644
--- a/cc/trees/layer_tree_host_impl.cc
+++ b/cc/trees/layer_tree_host_impl.cc
@@ -32,7 +32,6 @@
 #include "cc/layers/layer_impl.h"
 #include "cc/layers/layer_iterator.h"
 #include "cc/layers/painted_scrollbar_layer_impl.h"
-#include "cc/layers/quad_sink.h"
 #include "cc/layers/render_surface_impl.h"
 #include "cc/layers/scrollbar_layer_impl_base.h"
 #include "cc/output/compositor_frame_metadata.h"
@@ -573,8 +572,7 @@ static void AppendQuadsForLayer(
     LayerImpl* layer,
     const OcclusionTracker<LayerImpl>& occlusion_tracker,
     AppendQuadsData* append_quads_data) {
-  QuadSink quad_culler(target_render_pass, &occlusion_tracker);
-  layer->AppendQuads(&quad_culler, append_quads_data);
+  layer->AppendQuads(target_render_pass, occlusion_tracker, append_quads_data);
 }
 
 static void AppendQuadsForRenderSurfaceLayer(
@@ -583,10 +581,9 @@ static void AppendQuadsForRenderSurfaceLayer(
     const RenderPass* contributing_render_pass,
     const OcclusionTracker<LayerImpl>& occlusion_tracker,
     AppendQuadsData* append_quads_data) {
-  QuadSink quad_culler(target_render_pass, &occlusion_tracker);
-
   bool is_replica = false;
-  layer->render_surface()->AppendQuads(&quad_culler,
+  layer->render_surface()->AppendQuads(target_render_pass,
+                                       occlusion_tracker,
                                        append_quads_data,
                                        is_replica,
                                        contributing_render_pass->id);
@@ -594,7 +591,8 @@ static void AppendQuadsForRenderSurfaceLayer(
   // Add replica after the surface so that it appears below the surface.
   if (layer->has_replica()) {
     is_replica = true;
-    layer->render_surface()->AppendQuads(&quad_culler,
+    layer->render_surface()->AppendQuads(target_render_pass,
+                                         occlusion_tracker,
                                          append_quads_data,
                                          is_replica,
                                          contributing_render_pass->id);
@@ -626,8 +624,6 @@ static void AppendQuadsToFillScreen(
     screen_background_color_region.Intersect(root_scroll_layer_rect);
   }
 
-  QuadSink quad_culler(target_render_pass, &occlusion_tracker);
-
   // Manually create the quad state for the gutter quads, as the root layer
   // doesn't have any bounds and so can't generate this itself.
   // TODO(danakj): Make the gutter quads generated by the solid color layer
@@ -636,7 +632,8 @@ static void AppendQuadsToFillScreen(
   gfx::Rect root_target_rect = root_layer->render_surface()->content_rect();
   float opacity = 1.f;
   int sorting_context_id = 0;
-  SharedQuadState* shared_quad_state = quad_culler.CreateSharedQuadState();
+  SharedQuadState* shared_quad_state =
+      target_render_pass->CreateAndAppendSharedQuadState();
   shared_quad_state->SetAll(gfx::Transform(),
                             root_target_rect.size(),
                             root_target_rect,
@@ -659,7 +656,7 @@ static void AppendQuadsToFillScreen(
                  visible_screen_space_rect,
                  screen_background_color,
                  false);
-    quad_culler.Append(quad.PassAs<DrawQuad>());
+    target_render_pass->AppendDrawQuad(quad.PassAs<DrawQuad>());
   }
   for (Region::Iterator fill_rects(overhang_region);
        fill_rects.has_rect();
@@ -687,7 +684,7 @@ static void AppendQuadsToFillScreen(
         screen_background_color,
         vertex_opacity,
         false);
-    quad_culler.Append(tex_quad.PassAs<DrawQuad>());
+    target_render_pass->AppendDrawQuad(tex_quad.PassAs<DrawQuad>());
   }
 }