Remove GL_CHROMIUM_iosurface extension

cc/resources/resource_provider.h

 // Copyright 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.
 
 #ifndef CC_RESOURCES_RESOURCE_PROVIDER_H_
 #define CC_RESOURCES_RESOURCE_PROVIDER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 122 matching lines @@
   ResourceId CreateResource(const gfx::Size& size,
                             TextureHint hint,
                             ResourceFormat format);
 
   // Creates a resource for a particular texture target (the distinction between
   // texture targets has no effect in software mode).
   ResourceId CreateGpuMemoryBufferResource(const gfx::Size& size,
                                            TextureHint hint,
                                            ResourceFormat format);
 
-  // Wraps an IOSurface into a GL resource.
-  ResourceId CreateResourceFromIOSurface(const gfx::Size& size,
-                                         unsigned io_surface_id);
-
   // Wraps an external texture mailbox into a GL resource.
   ResourceId CreateResourceFromTextureMailbox(
       const TextureMailbox& mailbox,
       std::unique_ptr<SingleReleaseCallbackImpl> release_callback_impl);
 
   ResourceId CreateResourceFromTextureMailbox(
       const TextureMailbox& mailbox,
       std::unique_ptr<SingleReleaseCallbackImpl> release_callback_impl,
       bool read_lock_fences_enabled);
 
@@ skipping 533 matching lines @@
   // A process-unique ID used for disambiguating memory dumps from different
   // resource providers.
   int tracing_id_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceProvider);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_RESOURCE_PROVIDER_H_