Removed QuadSink and MockQuadCuller

cc/layers/render_surface_impl.cc

Index: cc/layers/render_surface_impl.cc
diff --git a/cc/layers/render_surface_impl.cc b/cc/layers/render_surface_impl.cc
index f26c292298cb88e8fb6120f97419135575fcba0a..74109855230ea4abcb4ce641776914c85080a95a 100644
--- a/cc/layers/render_surface_impl.cc
+++ b/cc/layers/render_surface_impl.cc
@@ -12,13 +12,13 @@
 #include "cc/debug/debug_colors.h"
 #include "cc/layers/delegated_renderer_layer_impl.h"
 #include "cc/layers/layer_impl.h"
-#include "cc/layers/quad_sink.h"
 #include "cc/layers/render_pass_sink.h"
 #include "cc/quads/debug_border_draw_quad.h"
 #include "cc/quads/render_pass.h"
 #include "cc/quads/render_pass_draw_quad.h"
 #include "cc/quads/shared_quad_state.h"
 #include "cc/trees/damage_tracker.h"
+#include "cc/trees/occlusion_tracker.h"
 #include "third_party/skia/include/core/SkImageFilter.h"
 #include "ui/gfx/rect_conversions.h"
 #include "ui/gfx/transform.h"
@@ -136,21 +136,24 @@ void RenderSurfaceImpl::AppendRenderPasses(RenderPassSink* pass_sink) {
   pass_sink->AppendRenderPass(pass.Pass());
 }
 
-void RenderSurfaceImpl::AppendQuads(QuadSink* quad_sink,
-                                    AppendQuadsData* append_quads_data,
-                                    bool for_replica,
-                                    RenderPass::Id render_pass_id) {
+void RenderSurfaceImpl::AppendQuads(
+    RenderPass* render_pass,
+    const OcclusionTracker<LayerImpl>& occlusion_tracker,
+    AppendQuadsData* append_quads_data,
+    bool for_replica,
+    RenderPass::Id render_pass_id) {
   DCHECK(!for_replica || owning_layer_->has_replica());
 
   const gfx::Transform& draw_transform =
       for_replica ? replica_draw_transform_ : draw_transform_;
   gfx::Rect visible_content_rect =
-      quad_sink->UnoccludedContributingSurfaceContentRect(
+      occlusion_tracker.UnoccludedContributingSurfaceContentRect(
           owning_layer_, content_rect_, draw_transform);
   if (visible_content_rect.IsEmpty())
     return;
 
-  SharedQuadState* shared_quad_state = quad_sink->CreateSharedQuadState();
+  SharedQuadState* shared_quad_state =
+      render_pass->CreateAndAppendSharedQuadState();
   shared_quad_state->SetAll(draw_transform,
                             content_rect_.size(),
                             content_rect_,
@@ -172,7 +175,7 @@ void RenderSurfaceImpl::AppendQuads(QuadSink* quad_sink,
         DebugBorderDrawQuad::Create();
     debug_border_quad->SetNew(
         shared_quad_state, content_rect_, visible_content_rect, color, width);
-    quad_sink->Append(debug_border_quad.PassAs<DrawQuad>());
+    render_pass->AppendDrawQuad(debug_border_quad.PassAs<DrawQuad>());
   }
 
   // TODO(shawnsingh): By using the same RenderSurfaceImpl for both the content
@@ -232,7 +235,7 @@ void RenderSurfaceImpl::AppendQuads(QuadSink* quad_sink,
                mask_uv_rect,
                owning_layer_->filters(),
                owning_layer_->background_filters());
-  quad_sink->Append(quad.PassAs<DrawQuad>());
+  render_pass->AppendDrawQuad(quad.PassAs<DrawQuad>());
 }
 
 }  // namespace cc