Mus: ImageTransportSurface should not depend on GpuChannelManager

gpu/ipc/service/image_transport_surface_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 "gpu/ipc/service/image_transport_surface.h"
 
 #include "base/macros.h"
 #include "gpu/ipc/service/image_transport_surface_overlay_mac.h"
 #include "gpu/ipc/service/pass_through_image_transport_surface.h"
 #include "ui/gfx/native_widget_types.h"
@@ skipping 23 matching lines @@
 gfx::SwapResult DRTSurfaceOSMesa::SwapBuffers() {
   return gfx::SwapResult::SWAP_ACK;
 }
 
 bool g_allow_os_mesa = false;
 
 }  //  namespace
 
 // static
 scoped_refptr<gl::GLSurface> ImageTransportSurface::CreateNativeSurface(
-    GpuChannelManager* manager,
     base::WeakPtr<ImageTransportSurfaceDelegate> delegate,
     SurfaceHandle surface_handle,
     gl::GLSurface::Format format) {
   DCHECK_NE(surface_handle, kNullSurfaceHandle);
 
   switch (gl::GetGLImplementation()) {
     case gl::kGLImplementationDesktopGL:
     case gl::kGLImplementationDesktopGLCoreProfile:
     case gl::kGLImplementationAppleGL:
       return make_scoped_refptr<gl::GLSurface>(
@@ skipping 15 matching lines @@
           new PassThroughImageTransportSurface(delegate, surface.get()));
   }
 }
 
 // static
 void ImageTransportSurface::SetAllowOSMesaForTesting(bool allow) {
   g_allow_os_mesa = allow;
 }
 
 }  // namespace gpu