Changes code using Compositor to pass in ContextFactory

ui/aura/window_tree_host_mac.mm

 // 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 <Cocoa/Cocoa.h>
 
 #include "ui/aura/window_tree_host_mac.h"
 #include "ui/aura/window_tree_host.h"
 
 namespace aura {
 
-WindowTreeHostMac::WindowTreeHostMac(const gfx::Rect& bounds) {
+WindowTreeHostMac::WindowTreeHostMac(const gfx::Rect& bounds,
+                                     ui::ContextFactory* context_factory) {
   window_.reset(
       [[NSWindow alloc]
           initWithContentRect:NSRectFromCGRect(bounds.ToCGRect())
                     styleMask:NSBorderlessWindowMask
                       backing:NSBackingStoreBuffered
                         defer:NO]);
-  CreateCompositor(GetAcceleratedWidget());
+  CreateCompositor(GetAcceleratedWidget(), context_factory);
 }
 
 WindowTreeHostMac::~WindowTreeHostMac() {
   DestroyDispatcher();
 }
 
 EventSource* WindowTreeHostMac::GetEventSource() {
   NOTIMPLEMENTED();
   return nil;
 }
@@ skipping 64 matching lines @@
 
 void WindowTreeHostMac::PostNativeEvent(const base::NativeEvent& event) {
   NOTIMPLEMENTED();
 }
 
 void WindowTreeHostMac::OnDeviceScaleFactorChanged(float device_scale_factor) {
   NOTIMPLEMENTED();
 }
 
 // static
-WindowTreeHost* WindowTreeHost::Create(const gfx::Rect& bounds) {
-  return new WindowTreeHostMac(bounds);
+WindowTreeHost* WindowTreeHost::Create(const gfx::Rect& bounds,
+                                       ui::ContextFactory* context_factory) {
+  return new WindowTreeHostMac(bounds, context_factory);
 }
 
 // static
 gfx::Size WindowTreeHost::GetNativeScreenSize() {
   NOTIMPLEMENTED();
   return gfx::Size(1024, 768);
 }
 
 }  // namespace aura