gpu: Remove Create/DeleteImage IPC by adding an X11_PIXMAP_BUFFER GpuMemoryBuffer type.

ui/gl/gl_image_io_surface.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 "ui/gl/gl_image_io_surface.h"
 
 #include "ui/gl/gl_bindings.h"
 #include "ui/gl/gl_context.h"
 
 // Note that this must be included after gl_bindings.h to avoid conflicts.
 #include <OpenGL/CGLIOSurface.h>
 
 namespace gfx {
 
-GLImageIOSurface::GLImageIOSurface(gfx::Size size)
-    : size_(size) {}
+GLImageIOSurface::GLImageIOSurface(const gfx::Size& size) : size_(size) {
+}
 
 GLImageIOSurface::~GLImageIOSurface() { Destroy(); }
 
-bool GLImageIOSurface::Initialize(gfx::GpuMemoryBufferHandle buffer) {
-  io_surface_.reset(IOSurfaceLookup(buffer.io_surface_id));
+bool GLImageIOSurface::Initialize(const gfx::GpuMemoryBufferHandle& handle) {
+  io_surface_.reset(IOSurfaceLookup(handle.io_surface_id));
   if (!io_surface_) {
     LOG(ERROR) << "IOSurface lookup failed";
     return false;
   }
 
   return true;
 }
 
 gfx::Size GLImageIOSurface::GetSize() { return size_; }
 
@@ skipping 20 matching lines @@
                                               0);
   if (cgl_error != kCGLNoError) {
     LOG(ERROR) << "Error in CGLTexImageIOSurface2D";
     return false;
   }
 
   return true;
 }
 
 }  // namespace gfx