1 files changed, 38 insertions, 0 deletions
diff --git a/chromium/third_party/blink/renderer/platform/graphics/gpu_memory_buffer_image_copy.h b/chromium/third_party/blink/renderer/platform/graphics/gpu_memory_buffer_image_copy.h
new file mode 100644
index 00000000000..e25e7322163
--- /dev/null
+++ b/chromium/third_party/blink/renderer/platform/graphics/gpu_memory_buffer_image_copy.h
@@ -0,0 +1,38 @@
+#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_GPU_MEMORY_BUFFER_IMAGE_COPY_H_
+#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_GPU_MEMORY_BUFFER_IMAGE_COPY_H_
+
+#include <memory>
+#include "gpu/command_buffer/client/gles2_interface.h"
+#include "third_party/blink/renderer/platform/platform_export.h"
+#include "ui/gfx/gpu_memory_buffer.h"
+
+namespace blink {
+
+class Image;
+
+class PLATFORM_EXPORT GpuMemoryBufferImageCopy {
+ public:
+  GpuMemoryBufferImageCopy(gpu::gles2::GLES2Interface*);
+  ~GpuMemoryBufferImageCopy();
+
+  gfx::GpuMemoryBuffer* CopyImage(Image*);
+
+ private:
+  bool EnsureMemoryBuffer(int width, int height);
+  void OnContextLost();
+  void OnContextError(const char* msg, int32_t id);
+
+  std::unique_ptr<gfx::GpuMemoryBuffer> m_currentBuffer;
+
+  int last_width_ = 0;
+  int last_height_ = 0;
+  gpu::gles2::GLES2Interface* gl_;
+  std::unique_ptr<gfx::GpuMemoryBuffer> gpu_memory_buffer_;
+
+  // TODO(billorr): Add error handling for context loss or GL errors before we
+  // enable this by default.
+};
+
+}  // namespace blink
+
+#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_GPU_MEMORY_BUFFER_IMAGE_COPY_H_