Remove top controls layer from cc/.

cc/top_controls_manager.cc

 // 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/top_controls_manager.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/time.h"
@@ skipping 14 matching lines @@
 
 // static
 scoped_ptr<TopControlsManager> TopControlsManager::Create(
     TopControlsManagerClient* client, float top_controls_height) {
   return make_scoped_ptr(new TopControlsManager(client, top_controls_height));
 }
 
 TopControlsManager::TopControlsManager(TopControlsManagerClient* client,
                                        float top_controls_height)
     : client_(client),
-      content_layer_id_(0),
       is_overlay_mode_(false),
       top_controls_height_(top_controls_height),
       controls_top_offset_(0),
       content_top_offset_(top_controls_height),
       previous_root_scroll_offset_(0.f),
       scroll_readjustment_enabled_(false),
       is_showing_animation_(false) {
   CHECK(client_);
 }
 
 TopControlsManager::~TopControlsManager() {
 }
 
 void TopControlsManager::UpdateDrawPositions() {
   if (!RootScrollLayer())
     return;
 
   // If the scroll position has changed underneath us (i.e. a javascript
   // scroll), then simulate a scroll that covers the delta.
   float scroll_total_y = RootScrollLayerTotalScrollY();
   if (scroll_readjustment_enabled_
       && scroll_total_y != previous_root_scroll_offset_) {
     ScrollBy(gfx::Vector2dF(0, scroll_total_y - previous_root_scroll_offset_));
     StartAnimationIfNecessary();
     previous_root_scroll_offset_ = RootScrollLayerTotalScrollY();
   }
-
-  float offset_top = is_overlay_mode_ ? 0 : content_top_offset_;
-
-  LayerImpl* content_layer =
-      client_->activeTree()->FindActiveTreeLayerById(content_layer_id_);
-  DCHECK(content_layer);
-  if (content_layer) {
-    gfx::Transform transform;
-    transform.Translate(0, offset_top);
-    content_layer->setTransform(transform);
-  }
-
-  // TODO(tedchoc): Adjust fixed position layers as well.
 }
 
 void TopControlsManager::ScrollBegin() {
   ResetAnimations();
   scroll_readjustment_enabled_ = false;
 }
 
 gfx::Vector2dF TopControlsManager::ScrollBy(
     const gfx::Vector2dF pending_delta) {
   ResetAnimations();
@@ skipping 100 matching lines @@
 
   if (controls_top_offset_ != 0
       && controls_top_offset_ != -top_controls_height_) {
     SetupAnimation(
         controls_top_offset_ >= -(top_controls_height_ * kShowHideThreshold));
     client_->setNeedsRedraw();
   }
 }
 
 }  // namespace cc