Remove old texture path in TextureLayer

ui/compositor/layer.cc

 // Copyright (c) 2012 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 "ui/compositor/layer.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 640 matching lines @@
   }
 
   if (delegate_)
     delegate_->OnPaintLayer(canvas.get());
   if (scale_content)
     canvas->Restore();
 }
 
 bool Layer::FillsBoundsCompletely() const { return fills_bounds_completely_; }
 
-unsigned Layer::PrepareTexture() {
-  NOTREACHED();
-  return 0;
-}
-
 bool Layer::PrepareTextureMailbox(
     cc::TextureMailbox* mailbox,
     scoped_ptr<cc::SingleReleaseCallback>* release_callback,
     bool use_shared_memory) {
   if (!mailbox_release_callback_)
     return false;
   *mailbox = mailbox_;
   *release_callback = mailbox_release_callback_.Pass();
   return true;
 }
@@ skipping 276 matching lines @@
   cc_layer_->SetBounds(ConvertSizeToPixel(this, size));
 }
 
 void Layer::RecomputePosition() {
   cc_layer_->SetPosition(gfx::ScalePoint(
         gfx::PointF(bounds_.x(), bounds_.y()),
         device_scale_factor_));
 }
 
 }  // namespace ui