Remove GL_CHROMIUM_iosurface extension

cc/resources/resource_provider.cc

 // 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.
 
 #include "cc/resources/resource_provider.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 611 matching lines @@
   DCHECK(pixels);
 
   ResourceId id = next_id_++;
   Resource* resource = InsertResource(
       id,
       Resource(pixels, bitmap.release(), size, Resource::INTERNAL, GL_LINEAR));
   resource->allocated = true;
   return id;
 }
 
-ResourceId ResourceProvider::CreateResourceFromIOSurface(
-    const gfx::Size& size,
-    unsigned io_surface_id) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-
-  ResourceId id = next_id_++;
-  Resource* resource = InsertResource(
-      id, Resource(0, gfx::Size(), Resource::INTERNAL, GL_TEXTURE_RECTANGLE_ARB,
-                   GL_LINEAR, TEXTURE_HINT_IMMUTABLE, RESOURCE_TYPE_GL_TEXTURE,
-                   RGBA_8888));
-  LazyCreate(resource);
-  GLES2Interface* gl = ContextGL();
-  DCHECK(gl);
-  gl->BindTexture(GL_TEXTURE_RECTANGLE_ARB, resource->gl_id);
-  gl->TexImageIOSurface2DCHROMIUM(
-      GL_TEXTURE_RECTANGLE_ARB, size.width(), size.height(), io_surface_id, 0);
-  resource->allocated = true;
-  return id;
-}
-
 ResourceId ResourceProvider::CreateResourceFromTextureMailbox(
     const TextureMailbox& mailbox,
     std::unique_ptr<SingleReleaseCallbackImpl> release_callback_impl,
     bool read_lock_fences_enabled) {
   DCHECK(thread_checker_.CalledOnValidThread());
   // Just store the information. Mailbox will be consumed in LockForRead().
   ResourceId id = next_id_++;
   DCHECK(mailbox.IsValid());
   Resource* resource = nullptr;
   if (mailbox.IsTexture()) {
@@ skipping 1317 matching lines @@
 
     const int kImportance = 2;
     pmd->CreateSharedGlobalAllocatorDump(guid);
     pmd->AddOwnershipEdge(dump->guid(), guid, kImportance);
   }
 
   return true;
 }
 
 }  // namespace cc