content: Add DeletedGpuMemoryBuffer IPC.

content/common/gpu/gpu_memory_buffer_factory_x11_pixmap.cc

 // 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 "content/common/gpu/gpu_memory_buffer_factory_x11_pixmap.h"
 
 #include "ui/gl/gl_image_glx.h"
 
 namespace content {
 
@@ skipping 21 matching lines @@
 
 scoped_refptr<gfx::GLImage>
 GpuMemoryBufferFactoryX11Pixmap::AcquireImageForGpuMemoryBuffer(
     const gfx::GpuMemoryBufferId& id,
     const gfx::Size& size,
     unsigned internalformat) {
   X11PixmapMapKey key(id.primary_id, id.secondary_id);
   X11PixmapMap::iterator it = pixmaps_.find(key);
   if (it == pixmaps_.end())
     return scoped_refptr<gfx::GLImage>();
-  XID pixmap = it->second;
-  pixmaps_.erase(it);
 
   scoped_refptr<gfx::GLImageGLX> image(
       new gfx::GLImageGLX(size, internalformat));
-  if (!image->Initialize(pixmap))
+  if (!image->Initialize(it->second))
     return scoped_refptr<gfx::GLImage>();
 
   return image;
 }
 
 }  // namespace content