Remove parts of //cc we aren't using

cc/layers/ui_resource_layer.cc

Index: cc/layers/ui_resource_layer.cc
diff --git a/cc/layers/ui_resource_layer.cc b/cc/layers/ui_resource_layer.cc
deleted file mode 100644
index fd107b1ed07813c791fbb0c590f28660d8024982..0000000000000000000000000000000000000000
--- a/cc/layers/ui_resource_layer.cc
+++ /dev/null
@@ -1,172 +0,0 @@
-// Copyright 2013 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/ui_resource_layer.h"
-
-#include "cc/layers/ui_resource_layer_impl.h"
-#include "cc/resources/prioritized_resource.h"
-#include "cc/resources/resource_update.h"
-#include "cc/resources/resource_update_queue.h"
-#include "cc/resources/scoped_ui_resource.h"
-#include "cc/resources/ui_resource_bitmap.h"
-#include "cc/trees/layer_tree_host.h"
-
-namespace cc {
-
-
-namespace {
-
-class ScopedUIResourceHolder : public UIResourceLayer::UIResourceHolder {
- public:
-  static scoped_ptr<ScopedUIResourceHolder> Create(LayerTreeHost* host,
-                                            const SkBitmap& skbitmap) {
-    return make_scoped_ptr(new ScopedUIResourceHolder(host, skbitmap));
-  }
-  UIResourceId id() override { return resource_->id(); }
-
- private:
-  ScopedUIResourceHolder(LayerTreeHost* host, const SkBitmap& skbitmap) {
-    resource_ = ScopedUIResource::Create(host, UIResourceBitmap(skbitmap));
-  }
-
-  scoped_ptr<ScopedUIResource> resource_;
-};
-
-class SharedUIResourceHolder : public UIResourceLayer::UIResourceHolder {
- public:
-  static scoped_ptr<SharedUIResourceHolder> Create(UIResourceId id) {
-    return make_scoped_ptr(new SharedUIResourceHolder(id));
-  }
-
-  UIResourceId id() override { return id_; }
-
- private:
-  explicit SharedUIResourceHolder(UIResourceId id) : id_(id) {}
-
-  UIResourceId id_;
-};
-
-}  // anonymous namespace
-
-UIResourceLayer::UIResourceHolder::~UIResourceHolder() {}
-
-scoped_refptr<UIResourceLayer> UIResourceLayer::Create() {
-  return make_scoped_refptr(new UIResourceLayer());
-}
-
-UIResourceLayer::UIResourceLayer()
-    : Layer(),
-      uv_top_left_(0.f, 0.f),
-      uv_bottom_right_(1.f, 1.f) {
-  vertex_opacity_[0] = 1.0f;
-  vertex_opacity_[1] = 1.0f;
-  vertex_opacity_[2] = 1.0f;
-  vertex_opacity_[3] = 1.0f;
-}
-
-UIResourceLayer::~UIResourceLayer() {}
-
-scoped_ptr<LayerImpl> UIResourceLayer::CreateLayerImpl(
-    LayerTreeImpl* tree_impl) {
-  return UIResourceLayerImpl::Create(tree_impl, id());
-}
-
-void UIResourceLayer::SetUV(const gfx::PointF& top_left,
-                            const gfx::PointF& bottom_right) {
-  if (uv_top_left_ == top_left && uv_bottom_right_ == bottom_right)
-    return;
-  uv_top_left_ = top_left;
-  uv_bottom_right_ = bottom_right;
-  SetNeedsCommit();
-}
-
-void UIResourceLayer::SetVertexOpacity(float bottom_left,
-                                       float top_left,
-                                       float top_right,
-                                       float bottom_right) {
-  // Indexing according to the quad vertex generation:
-  // 1--2
-  // |  |
-  // 0--3
-  if (vertex_opacity_[0] == bottom_left &&
-      vertex_opacity_[1] == top_left &&
-      vertex_opacity_[2] == top_right &&
-      vertex_opacity_[3] == bottom_right)
-    return;
-  vertex_opacity_[0] = bottom_left;
-  vertex_opacity_[1] = top_left;
-  vertex_opacity_[2] = top_right;
-  vertex_opacity_[3] = bottom_right;
-  SetNeedsCommit();
-}
-
-void UIResourceLayer::SetLayerTreeHost(LayerTreeHost* host) {
-  if (host == layer_tree_host())
-    return;
-
-  Layer::SetLayerTreeHost(host);
-
-  // Recreate the resource held against the new LTH.
-  RecreateUIResourceHolder();
-
-  UpdateDrawsContent(HasDrawableContent());
-}
-
-void UIResourceLayer::RecreateUIResourceHolder() {
-  if (!bitmap_.empty())
-    SetBitmap(bitmap_);
-}
-
-void UIResourceLayer::SetBitmap(const SkBitmap& skbitmap) {
-  bitmap_ = skbitmap;
-  if (layer_tree_host() && !bitmap_.empty()) {
-    ui_resource_holder_ =
-        ScopedUIResourceHolder::Create(layer_tree_host(), bitmap_);
-  } else {
-    ui_resource_holder_ = nullptr;
-  }
-  UpdateDrawsContent(HasDrawableContent());
-  SetNeedsCommit();
-}
-
-void UIResourceLayer::SetUIResourceId(UIResourceId resource_id) {
-  if (ui_resource_holder_ && ui_resource_holder_->id() == resource_id)
-    return;
-
-  if (!bitmap_.isNull())
-    bitmap_.reset();
-
-  if (resource_id)
-    ui_resource_holder_ = SharedUIResourceHolder::Create(resource_id);
-  else
-    ui_resource_holder_ = nullptr;
-
-  UpdateDrawsContent(HasDrawableContent());
-  SetNeedsCommit();
-}
-
-bool UIResourceLayer::HasDrawableContent() const {
-  return ui_resource_holder_ && ui_resource_holder_->id() &&
-         Layer::HasDrawableContent();
-}
-
-void UIResourceLayer::PushPropertiesTo(LayerImpl* layer) {
-  Layer::PushPropertiesTo(layer);
-  UIResourceLayerImpl* layer_impl = static_cast<UIResourceLayerImpl*>(layer);
-
-  if (!ui_resource_holder_) {
-    layer_impl->SetUIResourceId(0);
-  } else {
-    DCHECK(layer_tree_host());
-
-    gfx::Size image_size =
-        layer_tree_host()->GetUIResourceSize(ui_resource_holder_->id());
-    layer_impl->SetUIResourceId(ui_resource_holder_->id());
-    layer_impl->SetImageBounds(image_size);
-    layer_impl->SetUV(uv_top_left_, uv_bottom_right_);
-    layer_impl->SetVertexOpacity(vertex_opacity_);
-  }
-}
-
-}  // namespace cc