Get rid of graphics layer anchor points, and replace with transform origin.

ui/compositor/compositor.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/compositor.h"
 
 #include <algorithm>
 #include <deque>
 
 #include "base/bind.h"
@@ skipping 68 matching lines @@
       last_started_frame_(0),
       last_ended_frame_(0),
       disable_schedule_composite_(false),
       compositor_lock_(NULL),
       defer_draw_scheduling_(false),
       waiting_on_compositing_end_(false),
       draw_on_compositing_end_(false),
       swap_state_(SWAP_NONE),
       schedule_draw_factory_(this) {
   root_web_layer_ = cc::Layer::Create();
-  root_web_layer_->SetAnchorPoint(gfx::PointF(0.f, 0.f));
 
   CommandLine* command_line = CommandLine::ForCurrentProcess();
 
   cc::LayerTreeSettings settings;
   settings.refresh_rate =
       context_factory_->DoesCreateTestContexts()
       ? kTestRefreshRate
       : kDefaultRefreshRate;
   settings.main_frame_before_draw_enabled = false;
   settings.main_frame_before_activation_enabled = false;
@@ skipping 290 matching lines @@
     // CompositorObservers to be notified before starting another
     // draw cycle.
     ScheduleDraw();
   }
   FOR_EACH_OBSERVER(CompositorObserver,
                     observer_list_,
                     OnCompositingEnded(this));
 }
 
 }  // namespace ui