1 files changed, 55 insertions, 0 deletions
diff --git a/chromium/third_party/blink/renderer/platform/graphics/gpu/extensions_3d_util.h b/chromium/third_party/blink/renderer/platform/graphics/gpu/extensions_3d_util.h
new file mode 100644
index 00000000000..f220a21eb4e
--- /dev/null
+++ b/chromium/third_party/blink/renderer/platform/graphics/gpu/extensions_3d_util.h
@@ -0,0 +1,55 @@
+// 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.
+
+#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_GPU_EXTENSIONS_3D_UTIL_H_
+#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_GPU_EXTENSIONS_3D_UTIL_H_
+
+#include <memory>
+#include "third_party/blink/renderer/platform/platform_export.h"
+#include "third_party/blink/renderer/platform/wtf/allocator.h"
+#include "third_party/blink/renderer/platform/wtf/hash_set.h"
+#include "third_party/blink/renderer/platform/wtf/noncopyable.h"
+#include "third_party/blink/renderer/platform/wtf/text/string_hash.h"
+#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
+#include "third_party/khronos/GLES2/gl2.h"
+
+namespace gpu {
+namespace gles2 {
+class GLES2Interface;
+}
+}
+
+namespace blink {
+
+class PLATFORM_EXPORT Extensions3DUtil final {
+  USING_FAST_MALLOC(Extensions3DUtil);
+  WTF_MAKE_NONCOPYABLE(Extensions3DUtil);
+
+ public:
+  // Creates a new Extensions3DUtil. If the passed GLES2Interface has been
+  // spontaneously lost, returns null.
+  static std::unique_ptr<Extensions3DUtil> Create(gpu::gles2::GLES2Interface*);
+  ~Extensions3DUtil();
+
+  bool IsValid() { return is_valid_; }
+
+  bool SupportsExtension(const String& name);
+  bool EnsureExtensionEnabled(const String& name);
+  bool IsExtensionEnabled(const String& name);
+
+  static bool CanUseCopyTextureCHROMIUM(GLenum dest_target);
+
+ private:
+  Extensions3DUtil(gpu::gles2::GLES2Interface*);
+  void InitializeExtensions();
+
+  gpu::gles2::GLES2Interface* gl_;
+  HashSet<String> enabled_extensions_;
+  HashSet<String> requestable_extensions_;
+  bool is_valid_;
+};
+
+}  // namespace blink
+
+#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_GPU_EXTENSIONS_3D_UTIL_H_