Removed QuadSink and MockQuadCuller

cc/layers/quad_sink.cc

Index: cc/layers/quad_sink.cc
diff --git a/cc/layers/quad_sink.cc b/cc/layers/quad_sink.cc
deleted file mode 100644
index 5b1d367e4e769e44e8bc86f4fb2fdb89b57d385b..0000000000000000000000000000000000000000
--- a/cc/layers/quad_sink.cc
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "cc/layers/quad_sink.h"
-
-#include "cc/debug/debug_colors.h"
-#include "cc/layers/append_quads_data.h"
-#include "cc/layers/layer_impl.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/trees/occlusion_tracker.h"
-#include "third_party/skia/include/core/SkColor.h"
-#include "ui/gfx/transform.h"
-
-namespace cc {
-
-QuadSink::QuadSink(RenderPass* render_pass,
-                   const OcclusionTracker<LayerImpl>* occlusion_tracker)
-    : render_pass_(render_pass),
-      current_shared_quad_state_(NULL),
-      occlusion_tracker_(occlusion_tracker) {
-}
-
-SharedQuadState* QuadSink::CreateSharedQuadState() {
-  current_shared_quad_state_ = render_pass_->CreateAndAppendSharedQuadState();
-  return current_shared_quad_state_;
-}
-
-gfx::Rect QuadSink::UnoccludedContentRect(
-    const LayerImpl* layer,
-    const gfx::Rect& content_rect,
-    const gfx::Transform& draw_transform) {
-  return occlusion_tracker_->UnoccludedContentRect(
-      layer->render_target(), content_rect, draw_transform);
-}
-
-gfx::Rect QuadSink::UnoccludedContributingSurfaceContentRect(
-    const LayerImpl* layer,
-    const gfx::Rect& content_rect,
-    const gfx::Transform& draw_transform) {
-  return occlusion_tracker_->UnoccludedContributingSurfaceContentRect(
-      layer, content_rect, draw_transform);
-}
-
-void QuadSink::Append(scoped_ptr<DrawQuad> draw_quad) {
-  DCHECK(draw_quad->shared_quad_state == current_shared_quad_state_);
-  DCHECK(!render_pass_->shared_quad_state_list.empty());
-  DCHECK(render_pass_->shared_quad_state_list.back() ==
-         current_shared_quad_state_);
-  DCHECK(!draw_quad->rect.IsEmpty());
-  DCHECK(!draw_quad->visible_rect.IsEmpty());
-  render_pass_->quad_list.push_back(draw_quad.Pass());
-}
-
-}  // namespace cc