Mozart: Avoid blocking in glCheckFramebufferStatus().

mojo/ui/gl_renderer.h

 // Copyright 2015 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 MOJO_UI_GL_RENDERER_H_
 #define MOJO_UI_GL_RENDERER_H_
 
 #include <deque>
 #include <memory>
 
 #include "base/callback.h"
+#include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "mojo/gpu/gl_context.h"
 #include "mojo/gpu/gl_texture.h"
 #include "mojo/public/cpp/bindings/strong_binding.h"
 #include "mojo/services/geometry/interfaces/geometry.mojom.h"
 #include "mojo/services/gfx/composition/interfaces/resources.mojom.h"
 
 namespace mojo {
@@ skipping 74 matching lines @@
   };
 
   void ReleaseTexture(GLRecycledTextureInfo texture_info, bool recyclable);
 
   scoped_refptr<mojo::GLContext> gl_context_;
   const uint32_t max_recycled_textures_;
 
   std::deque<GLRecycledTextureInfo> recycled_textures_;
   uint32_t bound_textures_ = 0u;
 
+#if DCHECK_IS_ON()
+  bool checked_framebuffer_status_ = false;
+#endif
+
   base::WeakPtrFactory<mojo::ui::GLRenderer> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GLRenderer);
 };
 
 }  // namespace ui
 }  // namespace mojo
 
 #endif  // MOJO_UI_GL_RENDERER_H_