Remove parts of //cc we aren't using

cc/layers/surface_layer_impl.cc

Index: cc/layers/surface_layer_impl.cc
diff --git a/cc/layers/surface_layer_impl.cc b/cc/layers/surface_layer_impl.cc
deleted file mode 100644
index 966112d7f546c1147471fdaf4f68d93fe395cc80..0000000000000000000000000000000000000000
--- a/cc/layers/surface_layer_impl.cc
+++ /dev/null
@@ -1,78 +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/surface_layer_impl.h"
-
-#include "base/trace_event/trace_event_argument.h"
-#include "cc/debug/debug_colors.h"
-#include "cc/quads/surface_draw_quad.h"
-#include "cc/trees/occlusion.h"
-
-namespace cc {
-
-SurfaceLayerImpl::SurfaceLayerImpl(LayerTreeImpl* tree_impl, int id)
-    : LayerImpl(tree_impl, id) {
-}
-
-SurfaceLayerImpl::~SurfaceLayerImpl() {}
-
-scoped_ptr<LayerImpl> SurfaceLayerImpl::CreateLayerImpl(
-    LayerTreeImpl* tree_impl) {
-  return SurfaceLayerImpl::Create(tree_impl, id());
-}
-
-void SurfaceLayerImpl::SetSurfaceId(SurfaceId surface_id) {
-  if (surface_id_ == surface_id)
-    return;
-
-  surface_id_ = surface_id;
-  NoteLayerPropertyChanged();
-}
-
-void SurfaceLayerImpl::PushPropertiesTo(LayerImpl* layer) {
-  LayerImpl::PushPropertiesTo(layer);
-  SurfaceLayerImpl* layer_impl = static_cast<SurfaceLayerImpl*>(layer);
-
-  layer_impl->SetSurfaceId(surface_id_);
-}
-
-void SurfaceLayerImpl::AppendQuads(RenderPass* render_pass,
-                                   AppendQuadsData* append_quads_data) {
-  SharedQuadState* shared_quad_state =
-      render_pass->CreateAndAppendSharedQuadState();
-  PopulateSharedQuadState(shared_quad_state);
-
-  AppendDebugBorderQuad(
-      render_pass, content_bounds(), shared_quad_state, append_quads_data);
-
-  if (surface_id_.is_null())
-    return;
-
-  gfx::Rect quad_rect(content_bounds());
-  gfx::Rect visible_quad_rect =
-      draw_properties().occlusion_in_content_space.GetUnoccludedContentRect(
-          quad_rect);
-  if (visible_quad_rect.IsEmpty())
-    return;
-  SurfaceDrawQuad* quad =
-      render_pass->CreateAndAppendDrawQuad<SurfaceDrawQuad>();
-  quad->SetNew(shared_quad_state, quad_rect, visible_quad_rect, surface_id_);
-}
-
-void SurfaceLayerImpl::GetDebugBorderProperties(SkColor* color,
-                                                float* width) const {
-  *color = DebugColors::SurfaceLayerBorderColor();
-  *width = DebugColors::SurfaceLayerBorderWidth(layer_tree_impl());
-}
-
-void SurfaceLayerImpl::AsValueInto(base::trace_event::TracedValue* dict) const {
-  LayerImpl::AsValueInto(dict);
-  dict->SetInteger("surface_id", surface_id_.id);
-}
-
-const char* SurfaceLayerImpl::LayerTypeAsString() const {
-  return "cc::SurfaceLayerImpl";
-}
-
-}  // namespace cc