Allow textures to be moved from one GL context group to another.

gpu/command_buffer/service/context_group.cc

 // Copyright (c) 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 "gpu/command_buffer/service/context_group.h"
 
 #include <string>
 
 #include "base/string_util.h"
 #include "gpu/command_buffer/common/id_allocator.h"
 #include "gpu/command_buffer/service/buffer_manager.h"
+#include "gpu/command_buffer/service/display.h"
 #include "gpu/command_buffer/service/framebuffer_manager.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 #include "gpu/command_buffer/service/program_manager.h"
 #include "gpu/command_buffer/service/renderbuffer_manager.h"
 #include "gpu/command_buffer/service/shader_manager.h"
 #include "gpu/command_buffer/service/texture_manager.h"
 #include "ui/gfx/gl/gl_implementation.h"
 
 namespace gpu {
 namespace gles2 {
 
-ContextGroup::ContextGroup(bool bind_generates_resource)
-    : num_contexts_(0),
+ContextGroup::ContextGroup(Display* display, bool bind_generates_resource)
+    : display_(display ? display : new Display),
+      num_contexts_(0),
       bind_generates_resource_(bind_generates_resource),
       max_vertex_attribs_(0u),
       max_texture_units_(0u),
       max_texture_image_units_(0u),
       max_vertex_texture_image_units_(0u),
       max_fragment_uniform_vectors_(0u),
       max_varying_vectors_(0u),
       max_vertex_uniform_vectors_(0u),
       feature_info_(new FeatureInfo()) {
   id_namespaces_[id_namespaces::kBuffers].reset(new IdAllocator);
@@ skipping 128 matching lines @@
   if (framebuffer_manager_ != NULL) {
     framebuffer_manager_->Destroy(have_context);
     framebuffer_manager_.reset();
   }
 
   if (renderbuffer_manager_ != NULL) {
     renderbuffer_manager_->Destroy(have_context);
     renderbuffer_manager_.reset();
   }
 
+  display_->DestroyOwnedTextures(texture_manager_.get(), have_context);
+
   if (texture_manager_ != NULL) {
     texture_manager_->Destroy(have_context);
     texture_manager_.reset();
   }
 
   if (program_manager_ != NULL) {
     program_manager_->Destroy(have_context);
     program_manager_.reset();
   }
 
   if (shader_manager_ != NULL) {
     shader_manager_->Destroy(have_context);
     shader_manager_.reset();
   }
 }
 
 IdAllocatorInterface* ContextGroup::GetIdAllocator(unsigned namespace_id) {
   if (namespace_id >= arraysize(id_namespaces_))
     return NULL;
 
   return id_namespaces_[namespace_id].get();
 }
 
 }  // namespace gles2
 }  // namespace gpu